·~ 

REF ID :A24362-30 

SECRET 

ISMrJRAJl>'l'Jll FOla CHDP, IJUft S1£tltln AGENCY 

l11.BJltT 1 .. place::on\ ot ~ CCI 

ao a.pteber 1949 

l. •· Xn ommaction with reference (a) 1t lt 1a deecod 

adVhable to note tbat t.be ICJ;-ClCi!ftl ia eOYered I.tr a llm'ber t4 

,.tent.a or patent appllce:t.1ou. 

1t. Certain ot the•• Jatenta or patent applicattona are 

Oltlll4 1rJ tibe T•l•t.1pe Corporai1on. The cact amber ot the•• 

-••, t.heir aerial mbera, an! epec1ftc Dature Al"tl ltll.ltnown to 

tbla .&pn.07, u U.,, are 'bolna bandled uadeP laf'J' control. · 

o. There are eertat11 othe patenta or patent awlS.eattau, coverlna eerta1n •ul.w141ar1 t•ture• which were inVented 

tw laTY per10..'lnel. Dlt.ail• at ower•MP _.. not la:lown to thie A••¥· 

•· ne llulc cryp\01ftph1c pr1ac1plea •plo;rwd 1n the .. ui..-t are coYarad lo' the tollovinc pet.ent appU.catlona, at111 

ID a •ecrec1 atatua w-M!or the "Three-tear ll\11•• (8". 4894, It.I., 

• Mall4ed) aDd lll•o 1mder 1'11>21c La• lo. 100 (•u--\!ae eeorec7 

tor J19tent. appl.1cet.1one) t 

·~l.!fJ!· 

70,412 

Ill .-eh ot tbNe \wo cuu the 11. I. Goverzmcnt ewiur the e11t1N 

rl&h\, title and irltorut 1a the 1Avent1on, t~out'tlout the 'D.8. 

and terr!torl.H an4 dependenc1• \hereot, Wt Id f'!!!httftJ \he SJmmtora have u lrre1'ocabl.e, ualpable, aa4 ac 'Wl1ft !aen1e 

to -.k•, •• ad/or •ell and to llceue other• to •k• ue &tl4/ar 

eell t.he im'en\1on. .&\tacbec! boreto 1• a cop7 at the ue!p:-.en.t 1'2 

•Cb oaae. (Incl. 1 and 2). 

-SECREJ 

Declassified and approved for release by NSA on 09-26-2013 pursuantto E .0. 1352~ 
l=IBF ID:A2436230 

SECR£1'' 

CSO.U-14 10 Sept.amber 1949 

l1JB&t1 hpl.•ce!:ent ot \be CC!t 

•· It ia and•J"atoo4 that ill order to obtalll a nleaa• t'rQQ 

ar • •o4UJ.cat1on of t.ha aecrec1 ot'der applJ1q t.o a s-tan\ applica- ticm b.el4 up Ullidv Public La• !lo. 700, unanhloua concWTel'lcea t.her.tor 

• I~ 

. 

11Ut be 9b'k1ntd b'Ol:l t.ha member• ot t.he .&r-4 Servlc•• rat.ent .A.dY1•0l7 ~ 

Joard. . . . (~ ~~ ~~~: 

1. In connectioza wlth t.h• general eubJect ot the 41.oloaure to 

tl-..Brl\iah of claaa1t1ed 1ilformat1on concel'll1rlc paten'8 aa4 1nven\1otl8, 

•'tell'tion .ta aall-4 to the U.Sa - u.x .. hc\l.l'it.7 qreement, a oop,y ot 

wh1ch 11 attached hereto •• Incl. J. 

J. If a deo.S.a1on ill -4• t.o nl.eue tho or1pt.cptaph1c pr1nc1plH mul~rlJi.nl; the B:l-SlGl.ll to t.he Dr1t1ab1 the tmdera.tped deal.re \hat 

aothinc be done which will J•oi:ediu \he poaa1bil1tT or ~eir obtalnlq llOMWJ eoapei11e.tion ti-om \he Br1'\11h 1a retu.ra tor .a l1cenaa to 

Mb uae ot the inv•t.iona ~O'fwed l>J Pate!lt .Applicatioms Serial loa. 

692,096 and ?0,412. 

) Incl• I J 

l 
. "'"'-

·---· -· 

REF ID:A2436230 . ; 

e··.- -·· ·- ··--·· ·F .... -.-- -~ .-:---· -=--.·-~~~-~· 

~-· 

WHERF.AS I, William F. Friedman, ot Washington, District r4 

~ 

Columbia,, whotfi address is Care Office of the Chief Signal O.f.ficer, 

Munitions Building, Washington, D. c., have invented a certain improvement in cryptographic system, for which I hs.ve made an application for Letters Patent of the United states, Serial No. 682,096, 

filed J~ 25, 1933; and 

WHEREAS, the,invention was made while I was an employee~ 

the War Department, and pertains to a device usefUl in the National 

De.fense; and 

WHEREAS, the Government of the United States is desirous or 

acquiring the entire right, title and interest in and to the said 

invention and in and to aey patents that may issue thereon; 

NOW, THEREFORE, in consi~ere.tion or the premieea and OJJ& ... 

(tl.00) dollar, the receipt of which is hereby ·acknowledged, I, 

William F. Friedman, have sold, assigned, and transf'erred, and b.r 

these presents do hereby sell, assign and transfer unto the Government 

Aot1!18 of the United States or America, as represented b:r thejSeoretary ot 

War, the entire right, tiUe and interest, throughout the United States 

of America, and the territories and dependencies thereof', and not el1awhere, in and to the Ba.id invention relating to improvem~t in c17ptographic system, as described, claimed and illustrated in the_ atoread.d 

application, Serial No. 682,096, and all Letters Patent issued t~er~on I • ' • u• •• • • 

and aey conti11uatio:ais, di~sions, r~ewals, and r!11eμe~-~~ ~~81~ 

' ' 

- . . . ... . 

.. 

•. 

... . .. . . " 

.I 

·~ ·--· --· 

-- . : ... -
·•. 

iji6.• 

•• ' 

.. 

" .' . "- .. _.. \ 

..... REF ID:A2436230 

• 

thereof'; reserving to 1111self' and legal representatives an irrevocable 

and a~signable license, without payment of royalty, BB.id license to be 

exclusive, except as to manufacture, use and/or sale b.Y· or for the 

United States Government, to make, use aDiJ/or sell and to license 

others to make use and/or sell the subject matter or said invention 

relating to improvement in cryptographic system, to the 1\\11 end or 

. the term or terms for which Letters Patent or aey divisions, reissues, 

renewals, extensions or continus.tiona thereof are or may be grantedJ 

the said entire right, title and interest to be held by the Government 

or the United States of America, as represented by the SecreU.ry of r.ar 

and his successors in office, to the full end of the term or terms for 

which said Letters Patent and a~ divisiona, reissues, renewals or extensions thereof are or may be granted, as fully and entire~ as the 

same would have been helci by me had this assignment and se.le not been 

made. 

Sworn to and subscribed by the ea.id William F. Friedman 

J : A-7'- betore me this I .' : I day or September-, 1936 • 

..... ·, 

) .: \ ·!. ~ l . f : 

•.' 

.. ~f~···· \ ,.. j~ ;--. 

..., .. .:') 

. : . " ... ..... \ ..... ,, . - ~ t> 'J ) \~ : ... .l • I \ 

,. 

,. ,. . . • 1 , • ' 

. ' 

- ·.· .. • ...•... 

RcGt1ij0fD 

Tran ""1Pf'S ("If P.-..tpq t--e 

U. 8. P~:-~.ent OUW. 

3EP I~· 1936 

ll ~ >-"9~~ - .. 

·-:·-~-

" ·-

..... •. •.";.·.;.•_7"'!" . : 

Bot&ry Public 

--

• 

I 

.,._ ·---.·· . .:: . ,,. . 

; , 

• 

-• -
REF ID:A2436230 

-r .... .. 

~·· .,..... • 

ll.5. ltfO 

A S S I G N M E N ! 

WHEREAS we, William F. Friedman, or W&Phington, Diatriot ot 

ColUlllbia, and Frank B. Rowlett, of East Falls Church, Arlington Count1, 

Virginia, whose address 11 Cara Office of the Chief Signal Officer, 

lfunitions Building, Washington, D.C,, have invented certain improvements 

in Cryptogrsphs, for which we h&'nl made an applic~tion for Letters Patent 

ot the United s.tate1, Serial No. 70,412, filed Mllrch 23, 1936; and 

i'l'rl.ERKAS, tile invention waB mF,de while we were employees of the 

~ar Lepartment, and pertnin2 to ~ devi~• usef'l1l in the NBtional Defense 

'lnd 

".'lr-:."EAS, the r.overnme11t of the United States is dceiirou1 of acquiring Le entire rieht, title ftnd interest in and to the said invention 

and in and to any patents th~t may issue thereon. 

) 

NOi, ';'tfEr'~FORE, 111 constderati.:in of the prerl\lses and one (~l.00) 

.dollar, the receipt of which ie hereby acknowledta'ed, we, Willi&lTl F. Fried-

~n and F.,.e.r..k: !3. Rowlett, have sold, auigned., and t:ransferred, &nd lly 

these present& do hereby sell, a~si~n, A.nd tranefer unto the Government 

f the Uni teci. ~tate1 of .i.JP,erica, a1 represented "by the Secret.•.r.v o!' '.'f•rr·, 

t.hJ; ent!rEo ri{:ht, litle ~nd interest, tl1ro11f'hout t.~e United ~htea or 

A.-r.erir.r., A.nd the territories Pnd dependencies therer.f, aud not elae'lthera, 

in and to the £11.id invention relr .. ting to improvement in Cr~·ptocraph11, 

as descrii:ed, cl11.11t .. ed l.Uld illustr~ted in t e aforesaid arplicat ion, rierial :-'o. 70,41?, e.r.d all L~tter1 Piltent ise•1ed thereon Rnd "\.ny cont·im1.l'tion11, 

, ~ 

-

_;-
. -----... --__ RE_F_ -ID : A2 4 3 62 3 0 

• • •-f'-~ • ··-

,. 

21_.s. ltf! 

diTislons, renewals, and l9lssnes or eytensions thereof ; res~rvlng to 

ourselves al.d le~~l re!1T"c?::ent~tives an irravoc~ble and e.r-sign.P.ble license, 

without payment of royalt~, caid i:cenae to be exclusive, except as to 

manufacture, use and/ or sale by or fer the United States Government, 

to make, use end/ or sell and to license others to mal:e use and/ or 

aell the subJect ma1.ter or a0 id invent101 relating to improv~!llent in 

CrYJ)tographs, to the full end of th~ terrri or terms for which Letters 

Patent or e.zcy di~iaione, reisslJSs, renewals, extensione or continuations 

thereor are or may be !'?'anted ; the said entire right, title and interest 

to be held b~ the Government of the ~nited States of l.m.erica, as represented 

by the Secr..:h.ry of 'lf'1.r "U"d his aue<:!essors in office, to the full end or 

the t1:::rm or ten11a for 1'hich eal,, Le-t t1::-rs Patent and any di vis ions, reis11\1e11. 

renewals or extensions thereof are or rr'll'Y be granted, ~e fully and entirely 

as the same would hf.Ive been held by itl!J hJ1.d this aseipunent anr\ sale not 

been Mde. 

#, 

t>__._.c.J .... _,f.; le_~· -o!f 

Sworn to and oubecribed by the ••id :z F. Friedman 

and Frank :B. Rowlett before me this n · day or 

.April, 1936. 

"· ; ~ \ RECORDED 

-· ·1 

-~ ( 

"--.----

L 
Declassified and approved for relTMby lIGi4. Ai211i~Cf0\ pursuant to E .0. 1352a 

-. 

DIFARTilEtJT OF THJI' ARMY 

ot£ice 0£ The AdJutant General 

Washington 25, D. O. 

AGAO-S 350.os (1 Oct 48) CSGID S October 1948 

SUBJECT: United States - United Kingdom Security Agreement 

!Oi Chier ot Ordnance 

Chie.t' of Engineers 

Chief ~ignal or£1cer 

The Surgeon General 

Chief, Chemical Corps 

The Quartermaster General 

Chief of Traneportation 

l. The United 3ta.tea Chiei's of Staff will make every ef.fort 

to insure that the United Sta.tea will maintain the military sacurit;r 

classif'ications established by United Kingdom authorities with respect to military information ot U.K. origin, and the military security clasaifieations established h¥ U.X.-U.s. origin or development; 

will safeguard according.l.7 such military information; will not exploit such intormatlon for production tor other than cilitary purposes; and, will not disclose such Militar1 information to a third 

n&tion without U.K. consent. The British C?1iets ot staff will make 

ever,- etfort to insure that the United Kin?,dom will •a1ntain the 

Military security classifications established by the U.S. authorities with respect to military information 0£ U.S. origin, and the 

military security claeaificationa established. by the U.K.-U.S. agreement with respect to mil1tal'1' information or joint U.K.-U.s. origin 

or development; will aareguard accordinJlY llUC~ military information; 

will not exploit sue~ information for production for other than ~ili· 

ta?'1' purposesj and will not diacl~ae auch military information to a t~ird nation without U.S. oonaent. Thia agreement applies to military information disclosed by tbe United States to the United Kingdom or by the United Kingdom to the United St&te• or exchanged between the United !ltates and the United Kinzdom on and after the date 

ot acceptance of this agreeT:ent by the United lingdom. 

2. The United States Chiefs of Staff and the British C~ie.f'a 

of Staff agree that insofar as the U.S. and the U.K. are concerned, 

the sa:f'eguards indicated above also app]1' to information developed 

by the U.S. and U.K. joint.J,y in collaboration with a third nation. 

3. It is agreed in respect of classified 1nf ormation coD1Jr.unicated bf one country to the other, that the recipient country shall 

use its beat endeavors within the framework or its laws and rulea 

to preYent IJJlf loes of patent rig,t1 in the information. Specifi-(sio; 

it is decl~red and agreed t~ats 

-SECi'. -~ : .. ·;_·. 

----·-- ......... 
.. REF ID:A2436230 

SECRETA.GAO..S 350.05 (l Oct 48) CSGID Continued 8 Jctober 194g 

Subji United States • United Kingdoa Securit7 Agreement 

a. A.n:f rights or the ori;inator to obtain patent protection in the recipient oountr7 in respect of the information camnunioated are not and ~ill not be prejudiced by virtue or the introduction or the infor~.ation into such countr1. 

b. The information, so lon3 aa it remains elaesif ied1 

will not be used or diacloaed by the recipient countr,y in any man• 

nar likely to prejudice the rii}rts ot the originator to obtain patent protection in respect thereof, ~ut if the recipient country desires to use or to disclose tha inf or!IUltion in an,y manner likely 

so to prejudice thG rights of the originator, then the recipient 

countrr will immediately notify the country of oriiin of the full 

circumstance• of such intended uae or disclos'.ire, and such use or 

dieolosure ah.all not be ef'fected until ap;.1roval 1• given by the 

c01~ntry of origin. 

e. Sa.oh country when 110 requeated by the other am:: to 

the extent consistent with its laws and rules •ill uae its beet 

endeavor a. 

(1) to have maintained in secrecy any pa.tent 

application filed in the recipient. count.r;y 

in respect of .~he information ror ao long 

a.a may be deeired by the country or origin, 

and 

(2) to supply reports of the manner in which the 

inf ormatlon embodied in a patent application 

bas been used or disolo1ed. 

4. For the purpose ot this agreeme:~t the United Ki.'l#dom, the 

Brltieh Dominions, and India. are considered to be aeparate na.tiona. 

BY ORDER vF TUE SECRT.TARY OF THE ARMY: 

CO~IES FUR.~ISH!D: 

Directors Diviaione of the 

General Starr U.S.A. 

2 

SE~:ttlff 

/a/ Edward F. Mitaell 

EDWARD F. WITSELL 

lla.Jor General 

The Adjutant 1eneral 

SiS:Rft 

-- ....... ."& _; •••