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REF ID:A521663 ..... --=------~- ~ 

-- . ···-"" ADDRESS ONL. Y 

THE COMMISSIONER OF PATENTS 

WASHINGTON, D. C. 

DEPARTMENT OF COMMERCE 

UNITED STATES PATENT OFFICE 

WASHINGTON 

Ex ni:tp \"4tll1am F. :Priedman, ser a. •.o. i:17 ,21μ~. 

Filed O~tober 2~, 1936, cryptocraphs. 

• • 

• • 

• • 

• • 

In compliance with the request in the letter 

of the Assistant Secretary of ~nr, dated April 26, 19,8, ti1.1s application 1s placed under the provisions of u. s. Code, Title 35, Section 37. 

The ass1gnt"'lent accO":'lpa..~yinz said letter, convay1ng to the Government of the United States or .~ America the entire r1,zht, title and interest 1n 

and to the above noted application,. has been recorded in accordance with the Commissioner•s order 

No. 3250, of September 5, 1933, for recording assignments of applications that are to be preserved in secrec7, and the assignment is returned herewith. 

This applicat~on wil1 not become abandoned be• 

fore December 21, 1940, that 1a, three 1ears from 

the date of the last Office action. 

Camm1as1.ortef"·~ :.~ I 

Mr. Charles A. Rowe, 

c/o Chief' of the Air Corps.. Patents Section, Signal Co:rps~ 

Room 1713, i!:u::itions :3u1ld1ng, Washington, D. c. 

1$EORE"f1 

Peclassified and approved for release by NSA on 11-22-2013 pursuant to E.O. 1352§ 

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.... :-. -. ·. 

OOS18(>..0'12-Gen. 

(4-9-38) 

REF ID:A521663 

lsi Ind. 

~ ·;--:~,,-a~ 

'\1' 1.... ·}J· J :~ :_ j 

a 

WD, OCS1g0 1 Wael:iing"ton, D.C., April l.2, 1938. To: ?atent Section, 

( Thru Channels ) • 

l. ~ cUreoted 1n paragraph 2 ot bnsio !otter, an a;:ipropria.te 

aaeignmont has been exacut.ed and accoapanies this indoraement. 

iiilliom P'. Friedman, 

Oryptanal)'st. 

SECRET 
REF ID:A521663 

Patent Application, Ser. No. 109,244, 

Filed oot. 23, 1936, 

Improvement 1n Cryptographs 

Mr. W1111am F. Friedman, CrYPtenal7et, 

War Plans end Training Division, 

Office of the Ohiet Signal Oftioere 

Ap1'11 9, 1938. 

le It hes b~en determined that the inYention forming the 

subjeet-~tter of the above entitled application is important to 

the armament and. defense of the United st~tes, and it is therefore 

desired thet the application be placed under Section 4894, Revised 

Statutes, as ar.iended, U.S.~., title 35, section 370 

2 o In pursu1m ae 11i th the foregoing and in eccordAnce 711 th 

A.H. 950-50, PRr. 6, Class (2), an e:ppropriata Assignment vesting 

title of t:t.e invention and application there-for in the United Ste tee 

is tra!l8m1tted herewith for execution. A~ter execution said Assign• 

ment is to be rAturned through ohennels and transmitted to the Patents 

Section f.or necessary action. 

Attached: 

Asaig.nmen t. 

Dawson Olmstead, 

Colonel, Signel Corps, 

3Xecutive. 
IN RIPLV IU!l'llR.10 

OCSig0-072-Ge:a.. 

REF ID:A521663 \ 

· .. ) 

WAR DEPARTMENT 

OFFICE OF THE CHIEF SIGNAL OFFICER 

WASHINGTON 

April 9, 1938. 

Subject: Patent Application, Ser. No. 107,244, 

Filed Oct. 23, 1936, 

To: 

Improvement in Crn>togTe:phs 

fir. William F. :Friedman, Cryptanalyst, 

War Plans and Training DiViaion, 

Office ot tbe Chief Signal Officer. 

1. It has been determined that the invention forming the 

subject-me.tter or the above entitled application is ilc.portant to 

the armament and defense ot the United States, and it is therefore 

desired thet the application be placed under section 4894, Revised 

Statutes, as emended, u.s.c., title 35, section 3?. 

2. In pursue.n ca ;,i th the foregoing and in accordance with 

A.R. 850-50, Par. 6, Class (2), an appropriate Assignment vesting 

title or the invention and application therefor in the United states 

is transmitted herewith tor execution. A.f'ter executio~ said Assignment is to be returned through channels and transmitted t~· tbe Patents 

Section for necessary action. 

Attached: 

Assignment. 

OCSiB()-072-Gen. 

(4-9-38j 

q, .. :-. ,,_ 

::.-. ~-._ •. • • .• -A ; • t ~. 

1st Ind. 

Dawson Olmstead, 

Colonel, Signal Corps, 

Executive. · 

8 

~m, ccs1g0, ~Vasl:.r.ington, D.c., .n.pril 12, 1938. To: PatentrSection, 

( Thru Channels ) • 

1. AB directed in paragraph 2 of basic letter, an appropriate 

assignment bas been executed and accompanies this indorsement. 

CWJt.t.o 

"\iilliam F. Friedman, 

.. ,. a-.~~ Cryptsnalyst. 
. j. 

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t S S I 0 N M E N T 

COPY. 

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\!)f). r~ 6'~· a_~~ 4 is· - '<-) ~g 

~-BIRJ:AS I, ~~nu em .i,. ~riedmen, or .,,·asht n1Iton, Dtstrtct .~t 

.. 

COl\llibla, •ho.lie addresa ! a ~are Of'f1ce of' the Chiat Signal 6rr1cer~. ·. ' . . . .' .. . . ~. ;.'.. . . . 

1Nn1Uone . !Jt(.tfotn~, . . . Washington, o.c., hftve 1n'Y4'nted. a certain ·. . . . ~ : . ~ 

... p1•o·Hm"'Dt. in C1.7PtOfl'.!'8pha, f'or which I hau Mde '-ln a~pUaa~lon · · · 

.· 

for Letters Patent or thA United· Stntea, r.eriel No. 107,244 1 .-.filed · 

Ooto'ber 23, 1~3e;.and 

11ER:U.S, the invein tion was madft while I wa11 en enployee ot 

. the ~er DepRr\llnnt, Rnd p~rtaina to R device U88f"ul in the nat10nel 

J>efenae; an4 

t·mmEJ.s, thA r.ovnrnllE'nt or the Un1te4 !Jtfttea 1a deairoua ot 

eoqulr1ng the enttre r1ght, title nnd interest ln Rnd to tbe eal4 

1D•eD111on and 1n and to 11ny potents that may leaue thereon ; 

IOI, TlmRRIPO'R!, in consl4erntlon of' the prem1aea rm4 one . . . : . . 

(01.00) dollar, the rttoelpt or •hlch is bera'by Rcknowledge4;:··:?, ·. 

\Ulllnm r. Ji'l"ledllen, 'hnva aold, aeatped, end transferred, ~~ b7 

tbeae pTeaenta-. do hereby aill, aaa1gn and tranatfll' unto the .oovermn•tl 

ot t'be. Un~te4 s~tea of iJll9rlcft, aa represented by the Seora\ftJ7: of . . . ~-... : : . ·. ·:: : 

wu~ the ent1~ ·rt1ht, '1tla and interest, throushout tbe uBJ~ States 

Ot ~~108 I &Dd the terri torln& Bm1 d8p&Jld8DC188 th81"80t t ••. :_.al~t else- . · .. · .~ . . . . . :. . ~ .. · :· -: . . ·.· .·· ·. 

when, -ln and'.;.to the •~id invention relating to improvement 1n· ~~r,pcognj,u, 

as desortbed, ··alatmect and 1llust:mta4 in the atoreaalG eppltoat~<»za, ser1al 

Mo. 10'1,24', and all Letter• P ... tent ieauad th.t'rf'lon ana 1tn7 contt..nwitlona, 

·.· : 

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·:-.· ... 

-:.:·: . . · ... ·. 

··:~·.: . . . . . ~=: ~. : .. · ... ···.' . ." 

.... · ·.· 

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.... 

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I 

REF ID:A521663 

41Yidona, renewals. nnd re1esuea or extanatona tbereot f resernna t.o 

117aelt end legal rt-prei;;entatt-.es en 1rrf!vooa'ble an~ assignable .license, 

without payment ot l"OY'Al ty, sn1d Uaenoe to be exolt1Si"9, exoept ea to 

-~ oture, : uae uA/ or BP. h by or tor the unt ted St Ates Oov.l"liizmnt, 

to make, uoe and/or nll find f,o license others to Mke uBe 8nd/or Mll 

the su'bj1u2t.matter or Mid inven.Uon rebt 1ng to 1mprovMen'\ i:n Crntograpu, to \he t'Ull end ot thf.I tel'tll or tenna tor •htob Letter& Paten' 

or any cUvte1one, rataaues, renewals, extenatona or conttnwlttona: \hereof 

ere o:r mey be. granWd; the said entire right, title an4 interest to ·~ 

: ' . 

by the secr~tarr of ~rer end hie aucceesors in of'tiae, to tb8 ~11 en4. . . .· . ... · ·- .. - . 

ot tbe teN. 0r teJ'm8 tor which said Letters Patent an4 any 41nsiona, 

M1eme8, ~ae•l• or extension& tbereot ere or may be @r&nte~, aa 'tullJ 

8ll4 aD.tt:rei, ..•• the am:te would ••• been held by ll9 hac1 this autgamea\ I 

end aalct not, bean me de. 

before me 'ble _ ... I _I _1\\_. -- clay of April, 1938. 

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;, ·. 

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REF ID:A521663 ·- \_..) 

ASSIGNMENT 

'."i:HEREAS 1 1 ·::illiam .!!'. l!'riedmsn, of .:ashington, District ot 

Colwnbia, whose address is Care Office of the Chief Signal Officer, 

Munitions Building, Washingtou, D.c., have invented a certain improvement in Cryptographs, for which I have made an application 

for Letters Patent of the United States, Serial No. 107,244, tile4 

October 23, 1936; and 

;;Jri!REAS, tbs inventiu·l was made while I was an employee of 

the ·.ar DepartmP.nt, and pertains to a device usetul in the National 

Defense; and 

~'H"!RE.AS, the Government of the United states is desirous of' 

acquir!ng the entire right, iitle end interest in and to the said 

invent.~on and in and to any pst.gnts that ma.v issue thereon ; 

NOW, ~:!!!'ORE, in consideration of the premises end one 

($1.00) dollar, the receipt of which is aereby acknowledged, I, 

William F. Friedmr-:~~ have sol1, assitned, Pnd transferred, end by 

these l'}"e&Pnts do ha::-eby sell, assign end transfer unto the Government 

ot the United StRtes of .Americe, as represented by the Secretary ot 

War, the entire right, title end interest, throughout tbe United States 

of .Alllerice, and the territories and dependencies thereof, and not else-

. . 

where, in end to the Sf1id invention relating to improvement in Oryptogrepha, 

as described, clai~ed end illustrated in the aforesaid application, serial 

N~. :c~,244, end all Letters Patent issued t~...ereon end any continuations, 

··-- ... --·-.. ... .. . ... . . - .. .. . . . . . . 
L ••••• 

REF ID:A521663 

\,..../ 

... . ,~ 

divisions, renewals, and reissues or extensions thereof', reserving to 

myself and legal representatives an irrevocable and assignable license, 

without payment ot royalty, said license to be exclusive, except as to 

manutaotu~e, use and/or sale by or for the united States Government, 

to make, use and/or sell end to license others to make use and/or eell 

the subject matter of said invention relet :Ing to improvement in Cryptographa, to the f'Ull end o:r the term or terms tor w~ich Letters Patent 

or any divisions, reissues, renewals, extensions or continU11:tians thereof 

are or may be granted; the said entire right, title and interest to be 

held by the Government or the United stetes or AJllerica, aa·represente4 

by the secretary o"t war and his successors in ottioe, to the f'Ull end 

ot the term or terms tor which seid Letters Patent and any divisions, 

reissues, renewals or extensions thereof' are or may be granted, as tull7 

and en tire}T as the eeme would have been held by me had this assignment 

and sale not been made. 

.·. 9,r;, .. _,_ • . " £ ~ ·~ 

• 1-,. .:·~ ........ '- ,.. c--:. ··~19.G=.:,...".ll!: . ..•. ~ .• 

Sworn to end subscribed b~r the said 1t1illiam F. Friedman 

before me this day or April, 1938. ------

Notary Public