REF ID:A272.B ....... 

llmtlAS I, William r. Friedan, ot laabiDgt.on, DJ.strict ot 

OoluabJ.a, wboae add.re•• ie Oare Ottioe or tbe .G'biet Signal Ott104a"1 

Munlt1on11 Buildiq, laabill&,ton, D. c. 1 baYe in:Yented a cwta.ia 1.aproYemt 1n 017Ptopaphio 81•'-• tor which I haft •de an appl1eat1oa tor Lettera PateQt of the United Statea, Serial lo. 6821 096, 

ruec1 .ruq 2s, 19.J.31 and 

'IJllRUS, the illYention •• _. while I ••• an tW?loJ•• of 

the 'lar Departa81lt, and pertaiu.to a d.ftiee 11...rul 1n the lational 

DefenMJ and 

'IHW.AB, the Oonrmaent ot tbe thd.ted Stat.ea 1• de1iroua ot 

aoq_uiring the en.tire rJ.Pt, title and 1.ntereat 1a and to the Aid 

1afttlUOll and 1a ud to &111' pat.eat• that -r 1••• thereoa1 

IOW, 'l'llDl10JtE, h con•lderation of the pra11U and ou 

(tl.00) dollar, the reoeipt ot whioh 1• herebf acknowledg-41 I, 

111Uu r. J'riedmu1 h&Ya sold, aeaigud, aad tranatvnd, and • 

theae pnaent• do hereby Hll, aalip and tranater unto th• Go'ftrnment 

ot the Urd.ted States of America, aa reprefflltecl b.r the hcr•tal7 of 

war, the entire ript, title and 1ntereat, throughout the United Sta.tea 

or Aaerloa, and the terr1tor1ea and dependenciea thereot, and not elaewhere, in and to the aid 1nnnt1c:m rel.atiJta to improveaent ln c17ptograph10 .,.tea, aa deecribed, ola.iud and illu•tnted in th• atonaaid 

appUoation, Serial lo. 6821096, and all Letter• Patent 1asued thereoa 

and u.J continuatioaa, d1Y111oaa, ren..,.11, and rel•••• or exteneloaa 

@'pp roved for Release by NSA on 08-19-2014 pursuantto E .0. 1352a 
REF ID: A272la8 .... 

tbereot1 reaomnc to ar•elf and legal repreHntat1Tea an irrevocable 

and &881gna'ble lioenae, without ~t ot r07alt.7, Hid lioeue to bta 

exclu•1-re, •xc•pt as to unutacture, uae and/or 181• b,y or for th• 

Uaited states Oo•erment, to make, ue and/or MU and. to Ucenae 

other• to u.k• U.H and/or sell the 8Ubjeot Mtter of eaid inventioa 

relating to iraprovM41nt ill cr;rptognphic q1tea, to t.he tull end ot 

the te1'lll or tenas tor which Letters Patent or any div1a1on1, reissues, 

renmrals1 exte~alona or continuation• thereof are or ..,- be granted; 

\he said entire r1ght, title and. intereat to be held by the Govenment 

of the United States of Aaer1ca, •• represent.cl bJr the SeoretaJ'f of hr 

ttnd his suco•aaora 1tl office, to the full end ot the tel"ll or terms tt>r 

which said Let.tars Patent and 8.D,Y di'Ylaioaa, reiaaue1, renewals or exterud.ona thereor are or -., be p-anted, as full7 ud entirely •• the 

nae would have been held bt u had this aaaipaeiat and sale not betm 

-·· 

lot..17 Publto 
.~ .. 

. ~-

t 

1111.•1-••·· tm "'" ·' " ,. .. 

'lfllRlJS I, W1111ea 1. l'riedmu, ~ •UJ.actoa, Dt.atrict ot 

Coluabia, 11boee addre•• 1• Oare Ottice ot the Chi.et sscu1 Otticer, 

llunitione !uildine, Waahincton, D. o., ban irnated a certain 11tproT8119Jlt 1n cryptographic qetea, tor wbicll I have -.de an application tor Letters Patent ot the United statea, Serial lo. 682,096, 

ruec1 J'u:Qr 2s, 19.3.3; anc1 

WHERI.lS, the invention n.s •de while I was an •Pl01ee or 

the War Department, and pertains to a device u11etul 1n the lational 

Defense; and 

WHmEAS, the GoYernment of the United States ia desirous ot 

acqu.irillg the entire right, title and interest in and to the add 

invention and in and to an;y patents that MY' issue thereon; 

NOW, THEREFORE, in consideration of the preai•• and oae 

($1.00) dollar, the receipt of which ie hereb,J' tcknowledged, I, 

William F. Friedman, have sold, assigned, and transferred, and hr 

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

Actipg of the United States of America, as represented by thejSecrete.ry of 

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

of America, and the territories and dependencies thereof, and not elsewhere, in and to the said invention relating to improvement in c17Ptographic system, as described, claimed and illustrated in the af ores~d 

application, Serial No. 682,096, and all Letters Patent issued thereon 

and a:rzy continuations, divisions, renewals, and reissues or extensione 
• 

. . 

REF ID:A27273B ,, 

thereof; reeerving to 1111self a.nd legal repre9entatives an irrevocable 

and assignable license, without payment of royalty, said license to be 

exclusive, except as to manufacture, use and/or sale by or for the 

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

others to make use and/or sell the subj~ct matter of said invention 

relating to improvement in cryptogrsphic system, to the full end of 

the term or terms for which Letters Patent or any divisions, reissues, 

renewals, extensions or continuations thereof are or may be granted; 

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

of the United States of America, as represented by the Secretary of War 

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

which said Letters Patent and any divie:ions, reissues, renewals or extensions thereof are or may be granted, as fully and entirely as the 

Mme would have been held by me had this assignment and sele not been 

ma.de. 

Sworn to and subscribed by the said Willi.am F. Friedman 

' .-1 before me this ....,._1_-""'_... __ day of September, 1936. 

I \ j . 

\ ,'. 

,·' 

·~--·, ~------

RcCORQED 'I'T'anRf<>~ r.f P'lt•~f'~ 

U.S. Pt~t~mt Otti06 

~;f p l '.' 1935 

~~ 

Rotary Public 

-·