,. 

REF ID:A363574 ---

IN THE 

UNITF.D STATES PATENT O!FICE 

D ftEa Application ot .. WILLIJ.M F • FRJ:ED?,!,AN ... 

... Serial !·!o • ... 551,172 .... 

nled -

"" 25 August 1944 - Fo7:' -.. Atr.rmm'l'IOA.Tnio DEVICE .. 

... 

TO: Tl..lG Honorllblc OO?J!!lissionor ot Patents 

1fa$hirJgton; D. o. 

Sha 

%3 

Division '' -

Room 253 

28 lulT 194$ 

!lrla 18 ibl respob.Se w Patent Office action dated 3 Fe~· 1945 

1n the above identif'iea appl.ica.tion. 

m 5 CIAI~iS; 

Claim l - Ca.noel 

Claim 3. Lina 5 .... Ca.noel "another switch" and in(Jert - a selector •• . LiJ:1e 6 • Ohs.nae nsourcesff to ~ aouroe " • 

Claim 4 .. Cancel 

Cld.m S,. Line 2 ~ Cancel nor the liken. 

L1llG 5 • Cancel "a conta.ct" tLlld insert .. one of a limited 

number ot contacts • • 

Pl.ease add the f ollO'lf1ng cla:lma 

6. In a device ot tho l'.lature described, a SOUl'ce o.f current" a 

41eri8$ ot eqpl;ographie rotord. having a. plurality ot inputs and a P1u• 

:talltJ ot outputs, a selector adapted to make iSUCcessive circuits between 

!laid 8Q'l:D:ce ot C\ll'l"ent anQ. a limited nusnbe:r:t of preselected inputs to sd.d 

@'pproved for Release by NSA on 07-29-2014 pursuantto E_O_ 1352a· 

··-· ••• --- •• ~·-· •·-··• •• ••••-•-:•···- •••••.•• ·~··· - - ·-·-- ----~ • "L .......... ._ ....... ---...... ----·--..~-·-
REF ID:A363574 

...i..s., an ~Dlloa~ ttr each of eaid. outputs adapted to be energized by 

Mid eource, $ltd rneeuis tw ass!gning ~le YaluelJ to said !ndictlWS 

1aid mans ~is:lng a holding ~ adjacent said :tndicators arid a 

oard t:fJ! the like slidabl¥ held th$rebT said card bearizlg indicie. which 

,_, be ftricvsl:r j\tx:taposed nth tho Ba.id indicators. 

One or the references cited by tho Exa.::dner is identified. as ~iedman1 

2.oc;o,416, which is cttoneous, No. 210901 416 beiJlC n p&tcnt to Hull tar 

Retrigera.t~ A~tus. the rero:rence ~~be Pa.tent Ho. 2,000,416 to 

.l'd.edraan. If' the ~orence in question !a to be relied upon1 !ts ire~ 

citation 1a clesi..~d. 

Since the "rmltipltt contact sw!tches• and "C17J)to~phic :rotors" ot 

J.pplicant •s description and cla!ma and 111eans f~ mounting the same are 

familiar to the art1 and s:lnctt no epecil'ic m.ounting means or rotor con• 

atruction 1a cla111ledt :lt 1- JaOt a~t what purpose will be served by 

• 

additional drawing&. Reconsideration or the :req'Uirement there!"~ '-4 

requeetea. Ref'erence is made to any ot the cited patents. 

Referring to the objection to Olaio 2 s.s falling to define the in• 

ventio:n :tn tlie 11mea..'lS" of lines 7 and S thereof, the expression bas reference to tho structure lll•ll2, the ro~1 .. being el:tdable within the latte:t 

am replac•ble, thus ·~o provide a Jeans tor cli.an:;:!.llg the oouet or the 

oe'ftl"fll lamps 101 th:t'ough ll.O. The :Cu.net.ion. or the strip is exp1d.ned on 

• 

Ciahl 3 bas been amended to po:tnt out; that the "other switch n referred to is aelectOJ." CJ0.-9'1. It IJhould be noted that this selector does 

not close all of: the inPu.ts to the rotor bank but to a i;redetol9i.ned m$1 .. 

be1!' ot eelected inpl.'lta. !his ~ent is not toUDi m any ot the reter~ 

ence J;atenta t;,.d probabl.¥ 'flOuld not be UiJ&d except in an autbentioator (u 

distingu1ehed bw a C17Ptograph). 

______________ ........... _ .......... _=~=--"'~···· .. - ---.,.. . ._.. ____________ _ 
REF ID:A363574 

It~ be noted,, 111 response to the Ezut:tner•s que17 as to the 

ditterence between an authenticator and a cryptograph_. that the f'ormer 

is a special case of the l&tter. While most cryptographs can be used 

to authenticate, the contrar)" is not true except that one or a· small 

Jl1lmber of ~actel's usaal]T are enciphered. in an authenticating 

operation. A. further distinction is that no purpose is served in an · 

authenticator b1' arrr means for Wi}c:frpaer:Lng as both correspondents 

normall.7 pertora exactly the same steps in authenticating a 

comnnmica.tion. 

In Claim. 5, in addition to the cancellation of' the expression 

. "or the like", the claim as amc:l:lled brings out the selection by the 

last-mentioned switch or a contact of a group of' a limited number. 

Claim 6 speoif'ically includes the structure Ul-112 of Figure 2. 

It di£terentiates from tho references as explained below. 

With regard to the references cited, none of' them shO\'Ts the 

selector-tJ'P8 switch called f'or by most ot tho clains nor the device 

ot preselecting a limited number of' inputs to the rotor maze~ nor 

the means, either broadq or specificall¥, .for varying tho values 

ot the output indicators, the latter two ot which f'eatm-es are or 

particular importance. 

Reconsideration and favorable action are requested. 

Continued prosecution under the three-;;ear rule is desired. 

Rsspect.tul.J1't 

WILLIAM F... FRIEDI.t!lf, Applican't .