Task: sc_respondent

What follows is an opinion from the Supreme Court of the United States. Your task is to identify the respondent of the case. The respondent is the party being sued or tried and is also known as the appellee. Characterize the respondent as the Court's opinion identifies them.

Identify the respondent by the label given to the party in the opinion or judgment of the Court except where the Reports title a party as the "United States" or as a named state. Textual identification of parties is typically provided prior to Part I of the Court's opinion. The official syllabus, the summary that appears on the title page of the case, may be consulted as well. In describing the parties, the Court employs terminology that places them in the context of the specific lawsuit in which they are involved. For example, "employer" rather than "business" in a suit by an employee; as a "minority," "female," or "minority female" employee rather than "employee" in a suit alleging discrimination by an employer.

Also note that the Court's characterization of the parties applies whether the respondent is actually single entitiy or whether many other persons or legal entities have associated themselves with the lawsuit. That is, the presence of the phrase, et al., following the name of a party does not preclude the Court from characterizing that party as though it were a single entity. Thus, identify a single respondent, regardless of how many legal entities were actually involved. If a state (or one of its subdivisions) is a party, note only that a state is a party, not the state's name.

Justice Thomas
delivered the opinion of the Court.
• Nearly 50 years ago, this Court in Graver Tank & Mfg. Co. v. Linde Air Products Co., 339 U. S. 605 (1950), set out the modern contours of what is known in patent law as the “doctrine of equivalents.” Under this doctrine, a product or process that does not literally infringe upon the express terms of a patent claim may nonetheless be found to infringe if there is “equivalence” between the elements of the accused product or process and the claimed elements of the patented invention. Id., at 609. Petitioner, which was found to have infringed upon respondent’s patent under the doctrine of equivalents, invites us to speak the death of that doctrine. We decline that invitation. The significant disagreement within the Court of Appeals for the Federal Circuit concerning the application of Graver Tank suggests, however, that the doctrine is not free from confusion. We therefore will endeavor to clarify the proper scope of the doctrine.
h — 1
The essential facts of this case are few. Petitioner Warner-Jenkinson Co. and respondent Hilton Davis Chemical Co. manufacture dyes. Impurities in those dyes must be removed. Hilton Davis holds United States Patent No. 4,560,746 (’746 patent), which discloses an improved purification process involving “ultrafiltration.” The ’746 process filters impure dye through a porous membrane at certain pressures and pH levels, resulting in a high purity dye product.
The ’746 patent issued in 1985. As relevant to this case, the patent claims as its invention an improvement in the ul-trafiltration process as follows:
“In a process for the purification of a dye... the improvement which comprises: subjecting an aqueous solution... to ultrafiltration through a membrane having a nominal pore diameter of 5-15 Angstroms under a hydrostatic pressure of approximately 200 to 400 p.si.g., at a pH from approximately 6.0 to 9.0, to thereby cause separation of said impurities from said dye....” App. 36-37 (emphasis added).
The inventors added the phrase “at a pH from approximately 6.0 to 9.0” during patent prosecution. At a minimum, this phrase was added to distinguish a previous patent (the “Booth” patent) that disclosed an ultrafiltration process operating at a pH above 9.0. The parties disagree as to why the low-end pH limit of 6.0 was included as part of the claim.
In 1986, Warner-Jenkinson developed an ultrafiltration process that operated with membrane pore diameters assumed to be 5-15 Angstroms, at pressures of 200 to nearly 500 p. s. i. g., and at a pH of 5.0. Warner-Jenkinson did not learn of the ’746 patent until after it had begun commercial use of its ultrafiltration process. Hilton Davis eventually learned of Warner-Jenkinson’s use of ultrafiltration and, in 1991, sued Warner-Jenkinson for patent infringement.
As trial approached, Hilton Davis conceded that there was no literal infringement, and relied solely on the doctrine of equivalents. Over Warner-Jenkinson’s objection that the doctrine of equivalents was an equitable doctrine to be applied by the court, the issue of equivalence was included among those sent to the jury. The jury found that the ’746 patent was not invalid and that Warner-Jenkinson infringed upon the patent under the doctrine of equivalents. The jury also found, however, that Warner-Jenkinson had not intentionally infringed, and therefore awarded only 20% of the damages sought by Hilton Davis. The District Court denied Warner-Jenkinson’s post-trial motions, and entered a permanent injunction prohibiting Warner-Jenkinson from practicing ultrafiltration below 500 p. s. i. g. and below 9.01 pH. A fractured en banc Court of Appeals for the Federal Circuit affirmed. 62 F. 3d 1512 (1995).
The majority below held that the doctrine of equivalents continues to exist and that its touchstone is whether substantial differences exist between the accused process and the patented process. Id., at 1521-1522. The court also held that the question of equivalence is for the jury to decide and that the jury in this case had substantial evidence from which it could conclude that the Warner-Jenkinson process was not substantially different from the ultrafiltration process disclosed in the ’746 patent. Id., at 1525.
There were three separate dissents, commanding a total of 5 of 12 judges. Four of the five dissenting judges viewed the doctrine of equivalents as allowing an improper expansion of claim scope, contrary to this Court’s numerous holdings that it is the claim that defines the invention and gives notice to the public of the limits of the patent monopoly. Id., at 1537-1538 (opinion of Plager, J.). The fifth dissenter, the late Judge Nies, was able to reconcile the prohibition against enlarging the scope of claims and the doctrine of equivalents by applying the doctrine to each element of a claim, rather than to the accused product or process “overall.” Id., at 1574. As she explained it: “The ‘scope’ is not enlarged if courts do not go beyond the substitution of equivalent elements.” Ibid. All of the dissenters, however, would have found that a much narrowed doctrine of equivalents may be applied in whole or in part by the court. Id., at 1540-1542 (opinion of Plager, J.); id., at 1579 (opinion of Nies, J.).
We granted certiorari, 516 U. S. 1145 (1996), and now reverse and remand.
II
In Graver Tank we considered the application of the doctrine of equivalents to an accused chemical composition for use in welding that differed from the patented welding material by the substitution of one chemical element. 339 U. S., at 610. The’ substituted element did not fall within the literal terms of the patent claim, but the Court nonetheless found that the “question which thus emerges is whether the substitution [of one element for the other]... is a change of such substance as to make the doctrine of equivalents inapplicable; or conversely, whether under the circumstances the change was so insubstantial that the trial court’s invocation of the doctrine of equivalents was justified.” Ibid. The Court also described some of the considerations that go into applying the doctrine of equivalents:
“What constitutes equivalency must be determined against the context of the patent, the prior art, and the particular circumstances of the case. Equivalence, in the patent law, is not the prisoner of a formula and is not an absolute to be considered in a vacuum. It does not require complete identity for every purpose and in every respect. In determining equivalents, things equal to the same thing may not be equal to each other and, by the same token, things for most purposes different may sometimes be equivalents. Consideration must be given to the purpose for which an ingredient is used in a patent, the qualities it has when combined with the other ingredients, and the function which it is intended to perform. An important factor is whether persons reasonably skilled in the art would have known of the interchangeability of an ingredient not contained in the patent with one that was.” Id., at 609.
Considering those factors, the Court viewed the difference between the chemical element claimed in the patent and the substitute element to be “colorable only,” and concluded that the trial court’s judgment of infringement under the doctrine of equivalents was proper. Id., at 612.
A
Petitioner’s primary argument in this Court is that the doctrine of equivalents, as set out in Graver Tank in 1950, did not survive the 1952 revision of the Patent Act, 35 U. S. C. § 100 et seq., because it is inconsistent with several aspects of that Act. In particular, petitioner argues: (1) The doctrine of equivalents is inconsistent with the statutory requirement that a patentee specifically “claim” the invention covered by a patent, § 112; (2) the doctrine circumvents the patent reissue process — designed to correct mistakes in drafting or the like — and avoids the express limitations on that process, §§251-252; (3) the doctrine is inconsistent with the primacy of the Patent and Trademark Office (PTO) in setting the scope óf a patent through the patent prosecution process; and (4) the doctrine was implicitly rejected as a general matter by Congress’ specific and limited inclusion of the doctrine in one section regarding “means” claiming, §112, ¶6. All but one of these arguments were made in Graver Tank in the context of the 1870 Patent Act, and failed to command a majority.
The 1952 Patent Act is not materially different from the 1870 Act with regard to claiming, reissue, and the role of the PTO. Compare, e. g., 35 U. S. C. § 112 (“The specification shall conclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the applicant regards as his invention”) with the Consolidated Patent Act of 1870, ch. 230, § 26, 16 Stat. 198, 201 (the applicant “shall particularly point out and distinctly claim the part, improvement, or combination which he claims as his invention or discovery”). Such minor differences as exist between those provisions in the 1870 and the 1952 Acts have no bearing on the result reached in Graver Tank, and thus provide no basis for our overruling it. In the context of infringement, we have already held that pre-1952 precedent survived the passage of the 1952 Act. See Aro Mfg. Co. v. Convertible Top Replacement Co., 365 U. S. 336, 342 (1961) (new section defining infringement “left intact the entire body of case law on direct infringement”). We see no reason to reach a different result here.
Petitioner’s fourth argument for an implied congressional negation of the doctrine of equivalents turns on the reference to “equivalents” in the “means” claiming provision of the 1952 Act. Section 112, ¶ 6, a provision not contained in the 1870 Act, states:
“An element in a claim for a combination may be expressed as a means or step for performing a specified function without the recital of structure, material, or acts in support thereof, and such claim shall be construed to cover the corresponding structure, material, or acts described in the specification and equivalents thereof.” (Emphasis added.)
Thus, under this new provision, an applicant can describe an element of his invention by the result accomplished or the function served, rather than describing the item or element to be used (e. g., “a means of connecting Part A to Part B,” rather than “a two-penny nail”). Congress enacted §112, ¶ 6, in response to Halliburton Oil Well Cementing Co. v. Walker, 329 U. S. 1 (1946), which rejected claims that “do not describe the invention but use ‘conveniently functional language at the exact point of novelty.’” Id., at 8 (citation omitted). See In re Donaldson Co., 16 F. 3d 1189, 1194 (CA Fed. 1994) (Congress enacted predecessor of § 112,¶ 6, in response to Halliburton); In re Fuetterer, 319 F. 2d 259, 264, n. 11 (CCPA 1963) (same); see also 2 D. Chisum, Patents §8.04[2], pp. 63-64 (1996) (discussing 1954 commentary of then-Chief Patent Examiner P. J. Federico). Section 112, ¶ 6, now expressly allows so-called “means” claims, with the proviso that application of the broad literal language of such claims must be limited to only those means that are “equiva-len[t]” to the actual means shown in the patent specification. This is an application of the doctrine of equivalents in a restrictive role, narrowing the application of broad literal claim elements. We recognized this type of role for the doctrine of equivalents in Graver Tank itself. 339 U. S., at 608-609. The added provision, however, is silent on the doctrine of equivalents as applied where there is no literal infringement.
Because § 112, ¶ 6, was enacted as a targeted cure to a specific problem, and because the reference in that provision to “equivalents” appears to be no more than a prophylactic against potential side effects of that cure, such limited congressional action should not be overread for negative implications. Congress in 1952 could easily have responded to Graver Tank as it did to the Halliburton decision. But it did not. Absent something more compelling than the dubious negative inference offered by petitioner, the lengthy history of the doctrine of equivalents strongly supports adherence to our refusal in Graver Tank to find that the Patent Act conflicts with that doctrine. Congress can legislate the doctrine of equivalents out of existence any time it chooses. The various policy arguments now made by both sides are thus best addressed to Congress, not this Court.
B
We do, however, share the concern of the dissenters below that the doctrine of equivalents, as it has come to be applied since Graver Tank, has taken on a life of its own, unbounded by the patent claims. There can be no denying that the doctrine of equivalents, when applied broadly, conflicts with the definitional and public-notice functions of the statutory claiming requirement. Judge Nies identified one means of avoiding this conflict:
“[A] distinction can be drawn that is not too esoteric between substitution of an equivalent for a component in an invention and enlarging the metes and bounds of the invention beyond what is claimed.
“Where a claim to an invention is expressed as a combination of elements, as here, ‘equivalents’ in the sobriquet ‘Doctrine of Equivalents’ refers to the equivalency of an element or part of the invention with one that is substituted in the accused product or process.
“This view that the accused device or process must be more than ‘equivalent’ overall reconciles the Supreme Court’s position on infringement by equivalents with its concurrent statements that ‘the courts have no right to enlarge a patent beyond the scope of its claims as allowed by the Patent Office.’ [Citations omitted.] The ‘scope’ is not enlarged if courts do not go beyond the substitution of equivalent elements.” 62 F. 3d, at 1573-1574 (dissenting opinion) (emphasis in original).
We concur with this apt reconciliation of our two lines of precedent. Each element contained in a patent claim is deemed material to defining the scope of the patented invention, and thus the doctrine of equivalents must be applied to individual elements of the claim, not to the invention as a whole. It is important to ensure that the application of the doctrine, even as to an individual element, is not allowed such broad play as to effectively eliminate that element in its entirety. So long as the doctrine of equivalents does not encroach beyond the limits just described, or beyond related limits to be discussed infra this page and 31-34, 39, n. 8, and 39-40, we are confident that the doctrine will not vitiate the central functions of the patent claims themselves.
Ill
Understandably reluctant to assume this Court would overrule Graver Tank, petitioner has offered alternative arguments in favor of a more restricted doctrine of equivalents than it feels was applied in this case. We address each in turn.
A
Petitioner first argues that Graver Tank never purported to supersede a well-established limit on nonliteral infringement, known variously as “prosecution history estoppel” and “file wrapper estoppel.” See Bayer Aktiengesellschaft v. Duphar Int’l Research B. V., 738 F. 2d 1237, 1238 (CA Fed.1984). According to petitioner, any surrender of subject matter during patent prosecution, regardless of the reason for such surrender, precludes recapturing any part of that subject matter, even if it is equivalent to the matter expressly claimed. Because, during patent prosecution, respondent limited the pH element of its claim to pH levels between 6.0 and 9.0, petitioner would have those limits form bright lines beyond which no equivalents may be claimed. Any inquiry into the reasons for a surrender, petitioner claims, would undermine the public’s right to clear notice of the scope of the patent as embodied in the patent file.
We can readily agree with petitioner that Graver Tank did not dispose of prosecution history estoppel as a legal limitation on the doctrine of equivalents. But petitioner reaches too far in arguing that the reason for an amendment during patent prosecution is irrelevant to any subsequent estoppel. In each of our cases cited by petitioner and by the dissent below, prosecution history estoppel was tied to amendments made to avoid the prior art, or otherwise to address a specific concern — such as obviousness — that arguably would have rendered the claimed subject matter unpatentable. Thus, in Exhibit Supply Co. v. Ace Patents Corp., 315 U. S. 126 (1942), Chief Justice Stone distinguished inclusion of a limiting phrase in an original patent claim from the “very different” situation in which “the applicant, in order to meet objections in the Patent Office, based on references to the prior art, adopted the phrase as a substitute for the broader one” previously used. Id., at 136 (emphasis added). Similarly, in Keystone Driller Co. v. Northwest Engineering Corp., 294 U. S. 42 (1935), estoppel was applied where the initial claims were “rejected on the prior art,” id., at 48, n. 6, and where the allegedly infringing equivalent element was outside of the revised claims and within the prior art that formed the basis for the rejection of the earlier claims, id., at 48.
It is telling that in each case this Court probed the reasoning behind the Patent Office’s insistence upon a change in the claims. In each instance, a change was demanded because the claim as otherwise written was viewed as not describing a patentable invention at all — typically because what it described was encompassed within the prior art. But, as the United States informs us, there are a variety of other reasons why the PTO may request a change in claim language. Brief for United States as Amicus Curiae 22-23 (counsel for the PTO also appearing on the brief). And if the PTO has been requesting changes in claim language without the intent to limit equivalents or, indeed, with the expectation that language it required would in many cases allow for a range of equivalents, we should be extremely reluctant to upset the basic assumptions of the PTO without substantial reason for doing so. Our prior cases have consistently applied prosecution history estoppel only where claims have been amended for a limited set of reasons, and we see no substantial cause for requiring a more rigid rule invoking an estoppel regardless of the reasons for a change.
In this case, the patent examiner objected to the patent claim due to a perceived overlap with the Booth patent, which revealed an ultrafiltration process operating at a pH above 9.0. In response to this objection, the phrase “at a pH from approximately 6.0 to 9.0” was added to the claim. While it is undisputed that the upper limit of 9.0 was added in order to distinguish the Booth patent, the reason for adding the lower limit of 6.0 is unclear. The lower limit certainly did not serve to distinguish the Booth patent, which said nothing about pH levels below 6.0. Thus, while a lower limit of 6.0, by its mere inclusion, became a material element of the claim, that did not necessarily preclude the application of the doctrine of equivalents as to that element. See Hubbell v. United States, 179 U. S. 77, 82 (1900) (“ ‘[A]ll [specified elements] must be regarded as material,’ ” though it remains an open “'question whether an omitted part is supplied by an equivalent device or instrumentality’ ” (citation omitted)). Where the reason for the change was not related to avoiding the prior art, the change may introduce a new element, but it does not necessarily preclude infringement by equivalents of that element.
We are left with the problem, however, of what to do in a case like the one at bar, where the record seems not to reveal the reason for including the lower pH limit of 6.0. In our view, holding that certain reasons for a claim amendment may avoid the application of prosecution history estoppel is not tantamount to holding that the absence of a reason for an amendment may similarly avoid such an estoppel. Mindful that claims do indeed serve both a definitional and a notice function, we think the better rule is to place the burden on the patent holder to establish the reason for an amendment required during patent prosecution. The court then would decide whether that reason is sufficient to overcome prosecution history estoppel as a bar to application of the doctrine of equivalents to the element added by that amendment. Where no explanation is established, however, the court should presume that the patent applicant had a substantial reason related to patentability for including the limiting element added by amendment. In those circumstances, prosecution history estoppel would bar the application of the doctrine of equivalents as to that'element. The presumption we have described, one subject to rebuttal if an appropriate reason for a required amendment is established, gives proper deference to the role of claims in defining an invention and providing public notice, and to the primacy of the PTO in ensuring that the claims allowed cover only subject matter that is properly patentable in a proffered patent application. Applied in this fashion, prosecution history estoppel places reasonable limits on the doctrine of equivalents, and further insulates the doctrine from any feared conflict with the Patent Act.
Because respondent has not proffered in this Court a reason for the addition of a lower pH limit, it is impossible to tell whether the reason for that addition could properly avoid an estoppel. Whether a reason in fact exists, but simply was not adequately developed, we cannot say. On remand, the Federal Circuit can consider whether reasons for that portion of the amendment were offered or not and whether further opportunity to establish such reasons would be proper.
B
Petitioner next argues that even if Graver Tank remains good law, the case held only that the absence of substantial differences, was a necessary element for infringement under the doctrine of equivalents, not that it was sufficient for such a result. Brief for Petitioner 32. Relying on Graver Tank’s, references to the problem of an “unscrupulous copyist” and “piracy,” 339 U. S., at 607, petitioner would require judicial exploration of the equities of a case before allowing application of the doctrine of equivalents. To be sure, Graver Tank refers to the prevention of copying and piracy when describing the benefits of the doctrine of equivalents. That the doctrine produces such benefits, however, does not mean that its application is limited only to cases where those particular benefits are obtained.
Elsewhere in Graver Tank the doctrine is described in more neutral terms. And the history of the doctrine as relied upon by Graver Tank reflects a basis for the doctrine not so limited as petitioner would have it. In Winans v. Denmead, 15 How. 330, 343 (1854), we described the doctrine of equivalents as growing out of a legally implied term in each patent claim that “the claim extends to the

Question: Who is the respondent of the case?
年. attorney general of the United States, or his office
数. specified state board or department of education
日. city, town, township, village, or borough government or governmental unit
的. state commission, board, committee, or authority
月. county government or county governmental unit, except school district
用. court or judicial district
成. state department or agency
名. governmental employee or job applicant
时. female governmental employee or job applicant
件. minority governmental employee or job applicant
一. minority female governmental employee or job applicant
请. not listed among agencies in the first Administrative Action variable
中. retired or former governmental employee
据. U.S. House of Representatives
码. interstate compact
不. judge
新. state legislature, house, or committee
文. local governmental unit other than a county, city, town, township, village, or borough
下. governmental official, or an official of an agency established under an interstate compact
分. state or U.S. supreme court
入. local school district or board of education
人. U.S. Senate
功. U.S. senator
上. foreign nation or instrumentality
户. state or local governmental taxpayer, or executor of the estate of
为. state college or university
间. United States
号. State
取. person accused, indicted, or suspected of crime
回. advertising business or agency
在. agent, fiduciary, trustee, or executor
页. airplane manufacturer, or manufacturer of parts of airplanes
字. airline
有. distributor, importer, or exporter of alcoholic beverages
个. alien, person subject to a denaturalization proceeding, or one whose citizenship is revoked
作. American Medical Association
示. National Railroad Passenger Corp.
出. amusement establishment, or recreational facility
是. arrested person, or pretrial detainee
失. attorney, or person acting as such;includes bar applicant or law student, or law firm or bar association
表. author, copyright holder
除. bank, savings and loan, credit union, investment company
加. bankrupt person or business, or business in reorganization
败. establishment serving liquor by the glass, or package liquor store
生. water transportation, stevedore
信. bookstore, newsstand, printer, bindery, purveyor or distributor of books or magazines
类. brewery, distillery
置. broker, stock exchange, investment or securities firm
理. construction industry
本. bus or motorized passenger transportation vehicle
息. business, corporation
行. buyer, purchaser
定. cable TV
改. car dealer
市. person convicted of crime
期. tangible property, other than real estate, including contraband
以. chemical company
修. child, children, including adopted or illegitimate
元. religious organization, institution, or person
方. private club or facility
录. coal company or coal mine operator
区. computer business or manufacturer, hardware or software
单. consumer, consumer organization
位. creditor, including institution appearing as such; e.g., a finance company
型. person allegedly criminally insane or mentally incompetent to stand trial
法. defendant
县. debtor
存. real estate developer
品. disabled person or disability benefit claimant
前. distributor
称. person subject to selective service, including conscientious objector
注. drug manufacturer
值. druggist, pharmacist, pharmacy
输. employee, or job applicant, including beneficiaries of
建. employer-employee trust agreement, employee health and welfare fund, or multi-employer pension plan
能. electric equipment manufacturer
大. electric or hydroelectric power utility, power cooperative, or gas and electric company
例. eleemosynary institution or person
度. environmental organization
始. employer. If employer's relations with employees are governed by the nature of the employer's business (e.g., railroad, boat), rather than labor law generally, the more specific designation is used in place of Employer.
到. farmer, farm worker, or farm organization
面. father
载. female employee or job applicant
点. female
密. movie, play, pictorial representation, theatrical production, actor, or exhibitor or distributor of
动. fisherman or fishing company
果. food, meat packing, or processing company, stockyard
图. foreign (non-American) nongovernmental entity
提. franchiser
发. franchisee
式. lesbian, gay, bisexual, transexual person or organization
国. person who guarantees another's obligations
登. handicapped individual, or organization of devoted to
错. health organization or person, nursing home, medical clinic or laboratory, chiropractor
者. heir, or beneficiary, or person so claiming to be
认. hospital, medical center
误. husband, or ex-husband
接. involuntarily committed mental patient
关. Indian, including Indian tribe or nation
重. insurance company, or surety
第. inventor, patent assigner, trademark owner or holder
地. investor
如. injured person or legal entity, nonphysically and non-employment related
设. juvenile
目. government contractor
开. holder of a license or permit, or applicant therefor
事. magazine
可. male
要. medical or Medicaid claimant
代. medical supply or manufacturing co.
小. racial or ethnic minority employee or job applicant
选. minority female employee or job applicant
标. manufacturer
明. management, executive officer, or director, of business entity
编. military personnel, or dependent of, including reservist
求. mining company or miner, excluding coal, oil, or pipeline company
列. mother
网. auto manufacturer
万. newspaper, newsletter, journal of opinion, news service
最. radio and television network, except cable tv
器. nonprofit organization or business
所. nonresident
内. nuclear power plant or facility
体. owner, landlord, or claimant to ownership, fee interest, or possession of land as well as chattels
通. shareholders to whom a tender offer is made
务. tender offer
此. oil company, or natural gas producer
商. elderly person, or organization dedicated to the elderly
序. out of state noncriminal defendant
化. political action committee
消. parent or parents
否. parking lot or service
保. patient of a health professional
使. telephone, telecommunications, or telegraph company
次. physician, MD or DO, dentist, or medical society
机. public interest organization
对. physically injured person, including wrongful death, who is not an employee
量. pipe line company
查. package, luggage, container
部. political candidate, activist, committee, party, party member, organization, or elected official
性. indigent, needy, welfare recipient
和. indigent defendant
更. private person
后. prisoner, inmate of penal institution
证. professional organization, business, or person
题. probationer, or parolee
确. protester, demonstrator, picketer or pamphleteer (non-employment related), or non-indigent loiterer
格. public utility
了. publisher, publishing company
于. radio station
金. racial or ethnic minority
公. person or organization protesting racial or ethnic segregation or discrimination
午. racial or ethnic minority student or applicant for admission to an educational institution
円. realtor
片. journalist, columnist, member of the news media
空. resident
态. restaurant, food vendor
管. retarded person, or mental incompetent
主. retired or former employee
天. railroad
自. private school, college, or university
我. seller or vendor
全. shipper, including importer and exporter
今. shopping center, mall
来. spouse, or former spouse
正. stockholder, shareholder, or bondholder
说. retail business or outlet
意. student, or applicant for admission to an educational institution
送. taxpayer or executor of taxpayer's estate, federal only
容. tenant or lessee
已. theater, studio
结. forest products, lumber, or logging company
会. person traveling or wishing to travel abroad, or overseas travel agent
段. trucking company, or motor carrier
计. television station
源. union member
色. unemployed person or unemployment compensation applicant or claimant
時. union, labor organization, or official of
交. veteran
系. voter, prospective voter, elector, or a nonelective official seeking reapportionment or redistricting of legislative districts (POL)
过. wholesale trade
电. wife, or ex-wife
询. witness, or person under subpoena
符. network
未. slave
程. slave-owner
常. bank of the united states
条. timber company
当. u.s. job applicants or employees
情. Army and Air Force Exchange Service
口. Atomic Energy Commission
合. Secretary or administrative unit or personnel of the U.S. Air Force
车. Department or Secretary of Agriculture
实. Alien Property Custodian
组. Secretary or administrative unit or personnel of the U.S. Army
版. Board of Immigration Appeals
周. Bureau of Indian Affairs
址. Bonneville Power Administration
记. Benefits Review Board
二. Civil Aeronautics Board
同. Bureau of the Census
业. Central Intelligence Agency
权. Commodity Futures Trading Commission
其. Department or Secretary of Commerce
进. Comptroller of Currency
试. Consumer Product Safety Commission
验. Civil Rights Commission
料. Civil Service Commission, U.S.
传. Customs Service or Commissioner of Customs
述. Defense Base Closure and REalignment Commission
集. Drug Enforcement Agency
多. Department or Secretary of Defense (and Department or Secretary of War)
无. Department or Secretary of Energy
员. Department or Secretary of the Interior
报. Department of Justice or Attorney General
他. Department or Secretary of State
無. Department or Secretary of Transportation
服. Department or Secretary of Education
线. U.S. Employees' Compensation Commission, or Commissioner
这. Equal Employment Opportunity Commission
制. Environmental Protection Agency or Administrator
将. Federal Aviation Agency or Administration
处. Federal Bureau of Investigation or Director
高. Federal Bureau of Prisons
子. Farm Credit Administration
道. Federal Communications Commission (including a predecessor, Federal Radio Commission)
章. Federal Credit Union Administration
手. Food and Drug Administration
库. Federal Deposit Insurance Corporation
三. Federal Energy Administration
从. Federal Election Commission
支. Federal Energy Regulatory Commission
家. Federal Housing Administration
长. Federal Home Loan Bank Board
付. Federal Labor Relations Authority
秒. Federal Maritime Board
路. Federal Maritime Commission
完. Farmers Home Administration
象. Federal Parole Board
则. Federal Power Commission
现. Federal Railroad Administration
京. Federal Reserve Board of Governors
转. Federal Reserve System
辑. Federal Savings and Loan Insurance Corporation
限. Federal Trade Commission
力. Federal Works Administration, or Administrator
学. General Accounting Office
外. Comptroller General
调. General Services Administration
项. Department or Secretary of Health, Education and Welfare
北. Department or Secretary of Health and Human Services
工. Department or Secretary of Housing and Urban Development
笑. Interstate Commerce Commission
监. Indian Claims Commission
任. Immigration and Naturalization Service, or Director of, or District Director of, or Immigration and Naturalization Enforcement
相. Internal Revenue Service, Collector, Commissioner, or District Director of
微. Information Security Oversight Office
册. Department or Secretary of Labor
联. Loyalty Review Board
平. Legal Services Corporation
增. Merit Systems Protection Board
听. Multistate Tax Commission
解. National Aeronautics and Space Administration
等. Secretary or administrative unit of the U.S. Navy
得. National Credit Union Administration
收. National Endowment for the Arts
安. National Enforcement Commission
价. National Highway Traffic Safety Administration
藏. National Labor Relations Board, or regional office or officer
命. National Mediation Board
应. National Railroad Adjustment Board
看. Nuclear Regulatory Commission
索. National Security Agency
资. Office of Economic Opportunity
产. Office of Management and Budget
串. Office of Price Administration, or Price Administrator
布. Office of Personnel Management
原. Occupational Safety and Health Administration
知. Occupational Safety and Health Review Commission
级. Office of Workers' Compensation Programs
水. Patent Office, or Commissioner of, or Board of Appeals of
击. Pay Board (established under the Economic Stabilization Act of 1970)
好. Pension Benefit Guaranty Corporation
物. U.S. Public Health Service
放. Postal Rate Commission
亿. Provider Reimbursement Review Board
经. Renegotiation Board
模. Railroad Adjustment Board
之. Railroad Retirement Board
台. Subversive Activities Control Board
州. Small Business Administration
配. Securities and Exchange Commission
画. Social Security Administration or Commissioner
统. Selective Service System
共. Department or Secretary of the Treasury
连. Tennessee Valley Authority
海. United States Forest Service
节. United States Parole Commission
退. Postal Service and Post Office, or Postmaster General, or Postmaster
間. United States Sentencing Commission
比. Veterans' Administration
问. War Production Board
至. Wage Stabilization Board
备. General Land Office of Commissioners
你. Transportation Security Administration
黑. Surface Transportation Board
或. U.S. Shipping Board Emergency Fleet Corp.
与. Reconstruction Finance Corp.
影. Department or Secretary of Homeland Security
话. Unidentifiable
视. International Entity
Answer:

Answer: 标