.... 

FEDERAL EMERGENCY ADMINISTRATION OF PUBl,IC WORKS 

M &IP 1 

CONTROL DOCKET No. rA. J;J ~14 

A r D 

Du-P-i~G&tfl--Lif:P---l~!Yect1011 

Number --2 --------or __________ Folders ___ ------- I 

No papers or documents wdl be remoued fro•n or added under the 

faateners of a control docket folder e:ccept bu de1lg11ated employee• 

of the Mail• and Files Divraion Anu violation of tl&UI order will be 

reported directly to the Lldmuuatrafor ... 10_ 11111111 

-. 

I• 

. 

pproved for Release by f\JSA on 

9-06-?013 ursuant to E. 0. 135? 

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REF ID:A67598 

• 

U.S.Patent 

FOLDER Application u.s. Date of 

NO. 'l'YPE NO. Descr112tion Inventors Serial No. Date Patent No. Issue 

Single-coDDDutator, Xey Friedman 588,344 1-23-32 2,028,772 l-~8-36 

tape controlled, key- and 

board and light 1ndi- Graham 

M-134-Tl 

eating cryptograph. 

5 Two models built. One 

in SSA museum; other 

was "cannibalized" for .J. parts • 

- Message Authenticating Friedman 28,500 6-26-35 2,080,416 5-18-37 

System. A keyboard, a 

6 perforated-card key control, an adding machine mechanism. 

M-134-T2 Cryptographic System. Friedman 682,096 - 7-25-33 Complete as- Secrecy -

Secret Multiple commutators signment to Order 

(This was controlled by Baudot Sec. War dated 

finally tape. Three prel1m- made 10-9-36 19-5-47 

7 issued !nary models built;& with license signed 

as M-134 total Qf 75 machines reserved to• by me 

and built by Wallace & inveint·or- ~ 2-6-47. 

M-134A Tiernan ---=--=--::..-. 

• 7-A ditto Second folder 

Modification in SIS Friedman 107,244 10-23-36 Complete as- Secrecy 

#7 (M-134-T2). Re- signment Order 

8 Secret places key tape by made 11-4-38 19-5-47 

system of cam wheels. with license signed reserved tpJ by me --=--:=:---c::--___....--r-- inventor 2-6-47 -=---=-----

-2-
REF ID:A67598 

U.S.Patent 

FOLDER Application u.s. Date or 

NO. TYPE NO. Descril!tion Inventors Serial No. Date Patent No. Issue 

"First modification in 

M-134-Tl. 11 (The commutator is kept in constant 

rotation); "second and 

third modification in 

9 M-134-Tl. 11 (Constantly Friedman 157113..83 8-4-37 ·21113911676 12-13-38 

10 rotating cipher wheel Govt. has 

e commutator; a cam wheel license 

mechanism; a translator 

tor combining effects 

or cam wheels.) &--\" .. Secret Internally (self control- Complete Secrecy~\ M-134-C led set or cipher-wheel assignment Order 

11 (Nav}: commutators. Basic Friedman 7011412 3-23-36 ia&de:to(Sec. dated . ECM patent on ECM-SIG.ABA and War 4-2-36-- 19-5-47"',6 

Rowlett but license signed y is retained me by~nventors 2-6-47 

-=--· 

11-A ditto Second tolder 

12 Secret Cryptanalytic Coincidence Counter 

13 Secret Cryptanalytic Idiomorph Friedman 

and Isomorph Locator 

14 Magnetic l'"ecording Friedman & 

cryptograph Miller 

M-138 t-3-46 

Friedman 300,212 10-19-39 2,395,863 This was 15 M-138-A Sliding strip cipher under Be and device Reversion- Public 16 modi:fi- ary assigncations ment made Law 

to Sec.War No. 600) 

-3- 10-16-39 
FOLDER 

NO. TYPE NO. 

17 

18 

e 19 

• 

20 

21 

22 

23 

23-A 

24 M-325 

REF ID:A67598 

U.S. Patent 

Application U.S. 

Inventors Serial No. De.te Patent No. 

Da.te or 

Description Issue 

System ror enciphering Friedman 478,193 

telephotos 

System ror enciphering Frieaman 478,868 

telephotos & 

Mauborgne 

' System for controlling Friedman 

intermittent action or 

ke7 tape transmitters 

Cipher System for Tele- Friedman 

type or Radiotype,using I.B.M.perforated cards 

Means for controlling Friedman 

displacements of 

cipher comnutators - Recording device Friedman 

Randomizing device 

for electric card 

sorter • 

ditto 

Friedman 36,868 

& 

Rowlett 

. Small (St7lus-operated) Friedman 549,086 

cryptograph 

.. 

-4-

3-12-43 

Assignment JS"~ 14s=\ 

made to Sec. I: ~i>K~ ~t1C War 18-10-43. 

"t, 'f-~ ~ l °!) 'o\ ·~ 'M\ 'W>.M""\ 

Assignment made 

to Sec.War 18-10-43 

8-19-35 2,166,137 7-18-39 

11-8-44 Revers1onary (old date assign.- 12-6-41) ment to 

Bee .War 1-8-

44. 

Secrec7 

Order 

dated 

15-5-47 

signed 

by me 

2-6-47 
REF ID:A67598 

U.S.Patent 

FOLDER Application u.s. Date of 

NO. TYPE NO. Descri;etion Inventors Serial No. Date Patent No. Issue 

25 Authenticating Device Priedm&n 551,,172 6-12-44 Reversionary for Banks assignment 

to Sec.War 

23-8-44 

26 Cr.yptographic Machine Friedmn,, (Abandoned 

Graham & 1927) 

e Evans 

27 Strip Cipher S7stem Friedman 

for authenticating banking messages 

28 Method of commutator Friedman & 

control Graham 

29 M-228 Cryptographic system Friedman & 443,,320 5-16-42 Reversionary 13-5-42 

for printing tale- Rowa.ett assignment Secrecy 

graphy made to Order 

Sec.War, dated 

·4cN't t...A 16-5-47 

"-•··•@ .. ~ signed 

by me 

• 2-6-47 

30 Authentication Device Friedman & 

(clock-control) Rosen 

31 Indicating Device Friedman 

-5-