~ re Application ot 

William 11.. J'r1edJMLn 

Serial No. 54-9,086 

Filed ll AUgUst 1944 

'tor ELECTRICAL SISTDI 

REF ID:A363254 

~ Honorable Commissioner ot Pat$nt• 

Washington 251 D. c. 

~U.r; 

Reaponsiw to an ott1ci&l act:t.on ar 5 J'ebru.ary 1953 iii the above-identiti-1 

appl1cat1on1 pleu• 8mEW4 a.a :toll~t 

IR 'lBE CUDl3s 

Claim 11 line 21 cancel "adaptod W'hen depressed. to •tep" and ilUJ•rt • tor stepping -· 

line a, att~ ":rotor" ins&rt .. vben 4-px-eased .. . 

Claim 11, l1n,e l, cancel "adapted to" end insert ... tor .. . 

line 21 cancel "re~eiven and inSert ... receiving ..... 

line 4, cauce1 "edaptod." $nd ~m - tot: indicating .... 

lin• 4, cancol 0 to ind1cate1i. 

line 4, after "the11 insert .. enciphered.•· 

Cl.t.ima 16 and. i7. Can.eel. 

Rawual: 

Applican:t regrets tba1; claima 5 • 7 vero overlooked :1n the preceding amendment. 

Re.conaideration ia requested r4 tho rejection ot these qlaiJmi on tm patent to 

:Korn lo. 1705641. 

'l!ho purpose (If the claimed arrangoment is to shoW the cryptographer at a glance 

not ou:cy- the :reeulte.t¥t of the ma¢hin• (the e?lCiphored letter) but a.lso th.et input 

(clear text) letter. Thi•.; it 1• believed, will help •void izll>ortemt errors 1n 

cryptogr8jphia text. 

ro ta - .. o:· •. / 

Declassified and approved for release by NSA on 07-23-2014 pursuantto E.O. 1352a J -
REF ID:A363254 

~AL 

Ever). with a typevriter, vi.:ro the t~ text 1s relativeir v1•1bl.e1 errora are 

made am\ not <l.11$QOV4t~ Wltil tba tn1Dg ts caqpletlld. When no rftoord. 1• mde 

(as hero), :tt :ts ilqportant that an operator have means tor chec:lt1ng htmiaelf a• 

enc1phormezrt prog.reasea. 

Conco:rn1ug tho lCorn patent, the Examiner has eaic1. that an ind:t.cato:r 1• shown 

e.t 3· It i• a.B'llJl.ed. ~hat :ret•:rence was being ma4e to tbe alphabet avrie4 by 

member 3,, e!no• 3 itli•lf' :t• a rotor or coding qlfldor. 

j;pplicaat believes tba.t the alphabet l.ett•r• ca.nriab be coneide~ :tuticaton 

u reQ.U;l.recl by ol&1- 5•1 • ~J:uta• lett•r• ba" no mtm:tOM.J. relatiOZl to 111t. 

CN'lC'Silled ~ or output cozd;.aot1 Qr resulting obaneter, al14 (after a rotor u 

wi*) are ueed 101•11' tor rotor al.1gamnt pUr,paae•, tll.ld la, tor •stabl:labing 

starling :po1i'tion# tor the rotoraa. ~he Kora 4iacloaure 1• ~'but 11& 

a coaplete :maoh11'1At, a beuch ~lt or Vindow i• p:rovicte4 to •ila.Plif1' the operatio1a. 

See, 'fo'f: 8JCUJ.Ple1 ark 60 ot Heber.a. .lo. 1,.683,,ara. 

Rd'errlng JIOre p&rt;1cularl.1' to t- claims (as r•lated to JCora.), 1" rill be 

seen that no 1n4icator (alphabet i.tter) 1• connected to ~ «mtact nor ca 

8Zf3' circuit• be coneletecl 1i1*'etbrollgh. l'urbbermore, ti. 'term "orwtographer 

rotor" is 'believed to be Yell um.tratoo4 in the art to comd.at ot a oyl'!A<ler 

having D;put contact•, ~put contaote, and emqplex intemal vuing. 'lhe 

contact•, 111other1t0rda1 an an integral part ot the rotor,; 1;1- reaitati~ ot 

"avitchff" in cl.aS• 5-7 :la the recitation ot somethiag ach1J:t10Qal.J and the 

If.om •lemeuta la, lb, etc., 11'h1oh also are rotoi- c®t.-11 ahoul.4 not be used 

aga.1.nst; thcis• *1\1onal mtchea. 

Re8.1M*ottul.J.¥ 1 

WIL'.LIAN ., • l'RJEDMAR, Awl1oasn 

m. litorAq