REF ID:A39678 

' • • 

II T11 UJ1111D STATES PATM QllICI 

In re -wJJ.cat1on •~• 

w1u.1g r. J'IUEDIWI mt 1RANK B. ROWlZft 

S.rial lo. ?01.Q2 

Filed March 23, 1936. 

Hon. c.aia•ionu' ot Patenu, 

Waah1.nctcm1 D.C. 

In reepanse to the of!1.cdal letter of Juq 27, 1939, ......,t 

1• --.. tol.lcnr91 

Clda 2 line 5 obmap •to cw• to1 ,...,. to 

Cllat.a 2 line I obenp •"&O pertom• toa ts tU•»M 

OJaim 9, ohange the pa"1od at the end of the ola!m to a ..,.. m4 

addl Mld tl.!9tr1!al Mp• .,tit.uttp •p ••rgiM4 bz t.be outc 

ma\ et •19 !P!Ut•W• to energise aaSd 4nta•• u •!ll u !« !O!! 

C1aim 10 chNlt e :.he pr-riod to a com .a a:.d adda t.be ''etc 

PM"' m·c• PRE1 "Pf M'" ddJW V tM smt.ma1i pt +.be -At.Ari 

f'pr m'M tJa• qm=t.tt.gre. 

Cla1m l6 line 4 oaneel1 •Nlt-aont.rollAl49 

Claim 16 line 8 abangea 

!Declassified and approved for release by NSA on 09-27-2013 pursuant to E. 0. 1352§ 
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REF ID:A39678 

• • 

at tlMI -4 ot th• el.aim to a ocw. and .td1 "11 MIDI M'A R 

•u.»· ...... 9' t.b• q-zt«t.qg. 

at the erM1 ot the olalm and adds 'W' i1pbm1M M'P' tt"eMd t.111a: 

JUh fgr m1RI tM - ""P""'D' tq a }IJ "mw'ent. OJI the SNfc 

p'4 of tM .......... 

Olaia 22 ltm• 4 ams, omoel ••lt OOD~ 

Cl.ldla 2J line 5 cumoel ••it oontroiW• 

Add the tollowq ol•i•• 

34. In t.h• an or cryptognph;y, the •tbod. ot enoipber!ltl 

a ••HP 'llhioh !mlm•• eatablilldng a crntographio relaUon 

batwen tm plalD text and the oipber tat tor a nrat plain t.zt 

character, and oha&fng the 017Ptograph10 relaticm for a aub1111<ruent 

plaiD tut oharncter 1n a mamer dependent on the said cryptorrapbio 

relat1onahip for Mid t1rat oharaoter. 

35. In the art of CZ'1J>to, ra1 ·~, the •thod of enoiphermg a 

mea.p whiOh inalu4ea establishing a OJ7ptograph1o relatimahip 

betwen the plain tat and oipher text tor eaah ot a aerie• ot 

the abaraate·e to be tniimitW which relationahlp is changed 

~ar e,,.oh aharaoter in a dear- depament up:m the CSl'JPtogr&pld.e 

relatiomb1p of pt"eoec!1ng input and. cnaput ahal"IGt.ere. 

36. Oont.l"ol oaaautaUne ... OGllpr.laJ.Dc in oombfnation, a 

pluralit7 of C0111111'tataN eooperatiq to IRIOll•1wl.7 p1"0dml 

ilftcular1t1es 1n t.he text tnumltted therethroush, m output 

end plate ooopera~ with am ot Mid oam·at.atora, a aerie• ot 

tel'llinals loo~ted on ea1d CNtpUt m4 plate tor reoe1vlns eDU'IJUaticD 

-2-
REF ID:A39678 

. . -- • . ,,... .w ... tatcin, ml .... GODDlot1ng ..s4 teN1ml.a :lato 

a plun1lty ot poupu, Nd1 L"l'W.!· 1ncllldizlg mcaie t.har.. eae W 'ml• 

71. n. omabinatiaa, 11': a ~lll'•Ph lllllhine, or a ..S.• 

... llk .....:t.ors cooperat!zlc with eub other to ROCeiwq prod,.. 11ftplarit1sr. 1n the text t.1'lmelld.tted tlwNthl'aul!h, 

- em p.laiie aljacat to .... -carat.a.tar a":. ot!llt end ot the ...... , 

\be .-alt.dell" MJ.-nt aa1d enl plate ha"f'in£ two Mte ot ...-u, ~ Sa aS4 e4 plate canpl.!aentu7 in nwaber ad ,·otd:Uon mt 

ooopaatillg ld.tb the nspecti"Ve sepeats 1n the ocwntatar aljaomt t.llereto, wu owcst..t.ns the t1nt and ..- eete or •w.wen• ot eal4 

..i GCSa'Uta°ka' in an irreplar .mer, the ocmmatator at the ell ~ 

tJle ll8Z'1ea oppoa:lte add end plate hcm.ng cmq- one eet o£ a1pmu, 

Mana oooper&tinc ld.th 1"JMI ao:-:matntor at the end~ the .n. 

oppos1t.e aldd end plat. t'or .intercwnwotiDg h eepeDt9 't'.hmNot', ?:".-a 

feeding the 1llput. enercia'U.one to cm or th8 tmmmla ot llat4 ..a 

plate, und •- ocmneotha.s teradml• ot mid ml plate \CJlet.httr 1ato 

., 

!8. ID a Qllter.? or cryptocraPhl', ocwatat!ng .... aoqA"l•inl 

• pl~...U.'Q' ot 111\tacmt oooperdin£ oaum&tatcrs, mil plate w 

tar feedSnc pla1a text er.e!"(1ma'U.ona .into ane ml ot -1.d omautat1111 

--• and tor NOe!Tinc the 80.."'lllllblecl text. t1"m ..W -Ut.kla 

••=•, a plmalJ.v ~ 4ftlae•, om ttor 8lloh of ..t4 ~ 

rupeoU.wq, ea.ah 8Uah ~ 1Doludlng Malla to rotate lta N.,..Uw 

_.._. when tbe dn!oe :la amgi-41 •••• mt.ding w 

hn!nc it. iapu\ .......s-ct ... ~ • pl.m-aU.tr ot ....,. ot auti• 

~ ... f/I01I tor ... ot ..... clnS.w, aid ••• iDd --tills 

•-iDoluH"i llWla fol' er-st•"na aS4 Sl'aapl ot _.,. tem.ta1tl 

Ill irnpl.u' tul~, and a pl..U."r et llc!W ....,..Uftl¥ ...,..i ... 1io mergiation ot 11&14 ....-• l'ellpMtJ.wq ....Pllinc lldl ...._ •• 

~ 1a a ·~_.. .... ml .....-n'11' tbt8 .-..nt la 

•3-
... • .. 

... 

REF ID:A39678 

• ~ .. • I 

" • 

a aeucmable rupaD··• to t1w ott1G1al. le\ter ot ~ 27, 1939. AU 

)3 clad• remain 1n tJJe .... 

The off'1o1&1 letter ot .Tuq 2!1, 1939 states ti.at the ol•S•• 

are nJ..W on tJle an u ~ applied. A study or 1he reeord Sad'•te• t.hat cla1JU 11 21 91 101 121 13--16, lC-~, and 27 

wre ~ Njected and a rt>sponae to that n~eaU.on la oantaiMd lm-ein. 

The ._..,na ill hie letter of July 241 1936 rejected all claSu 

on the gr'OUl1d tba ..,_,_.. and timoUan or the universal bar 1a 1DtNttia1entq d1ealo•14. l£ ap lioant overcoms th1a ground ot nJ"'1on 

1• la then &~parent t.bat oJa1m9 J-81 111 17, 2J.,.'Z79 aDd 28-)3 

whioh haw not heNtofmte been nj•ted on ~ p-ound other than 

11111dequate cli.Nl.09are aft a~ alJ.omble. 

The t1tr11 "uniwnal bar" hu a noop19ed ••"ng 1n the &l"t and 

acaaftl!Jl8l¥ a detaUe4 .. eoriptian ot the tmaoUm am mode ot 

ape1-ation or a w:d:verml 'biz' ;.a not bellewd 1:ieoe811a17. Jul _. 

M1d bJ' tm 8'apl:w Court in Webeter Lacm eo. v. JUcE1na1 lD5 

u.s. sa:>, 5f6, lllld also 1n Can.gie steel Oo. v. Cambria Iron eo. 

185 u.:.::. 4031 4YI• •that whlah is am and wll known is as it 

it were written M 1n the patent and delJMated 1n the dr991nga.• 

The -wUmmt has ameaded the reaa1n1ng cl.du in an attapt 

on 1peoi.1'1a ah_,.. ot 1IOl'd1J1t or ahcnr1nc• 1n the ctrawilJp and 

dealres w -aell\ erq chupa 1n word1ng or ahcndll,;;s, applloc\ 

w1ll be el.ad to l'9091ft the 11U1PllUcm.a. 

The oleSu-. all though\ to be patentable since the ret.-. 

.-a do not 11119 the oatput ~ t.he1r cCC1111tatcn to aontzrol the 

9D'Ym911t or the ~ but tlw ir..,. 'tibemlelvee ocmtrol the 

ecr ltatora. !be ar;yptographic aeour1"7 ot ap1>licantl' aonatruction 

19 ther· tore VV7 auah greater. '1'h1a 1a OD1 or thoM aa.s often 

found lD patent aat tera -.. a ailnple dlsnge ett.at,• llll1'bcl illpn1nmmt 1n reaults • 1n W. GaM a :marked increaoe 1n ~ 

ll80ln-1t.7. !he el•'•• oall fol" a toui.la tanation of the ~ 

--·, .. .tmoU.on to .,.. th• ~ -.us e4 ..u.r ~ 

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REF ID:A39678 

• I••" • • 

1e to aorle u. :........... lod.D€; the 0: 1"8.'Ullc .... la - jznp1mi ,._,_ ~ q10n tho crnt.otJ:rai.W CAlt;p1& of tll9 

•-.tat:hrl .... :1.11 not tcna1 m the o11ie4 Pl'Ss .n pat.ta. 

1.etllo4 clew l4 :.al '' dltf'e 1'1'oll the .. cd.ttid ~ the 

en:i•ner ~ t.bat ar~ rto~.td.o -:•lation tar ... eq....t pla!zl text 

aharactera 111 ...,_ 1n a .,,.,,,.,. depmuieut. • 1lae ..-JPfiolnpld.o 

Nl&'Uma!dp of t~ cshsraJ'&el' t,.wogwl:t'fied.e lew aJe1m 36 Mftl 'J7 

I Nl&te apecdf1oe117 to 'UNI CICIUtrol oomut.t.w .,_ Ge~ l't.gln 21 

1D wld.eb a plDral.4..\1' o! OO&Gtatonl an owW ~. r... 

olda ll nlatea to a _.,,nat!cm or a CICIUtrol ~ ~ 

ommttat.ar. 1illG 

~ tbe ::aa:ln .,._.ta.ting .... ~ ~ J8 ta 

patmtllM• far tho - NUcza ";.8 oJe1M 1-JJ, 1POlvatw. 

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