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Files W.F.F. Archive Patent and Equipment Records Patent File, SISDE-5, Single Commutator Cryptograph, Serial No. 588,344, Patent No. 2,028,772, Friedman and Graham, 1930-1936
Additional Tape Transmitter for Cipher Machine
Document A522107
111.41 KiB
PDF
Chief Signal Officer Directs Section to Secure Issuance of Patent Application No. 583,344
Document A522066
18.81 KiB
PDF
Cipher Wheel Drawings
Document A522273
323.48 KiB
PDF
Circumstances Which Establish the Date of Completion Regarding Invention
Document A522151
134.64 KiB
PDF
Classification Regarding Mr. Friedman's Patent
Document A522070
39.32 KiB
PDF
Comments on Fix to Cipher Wheel Patent
Document A522145
84.41 KiB
PDF
Comments Regarding First Action on Cipher Machine Patent Application
Document A522126
57.36 KiB
PDF
Comments Regarding Patent Application
Document A522122
68.6 KiB
PDF
Converter Type M-134-T1
Document A522103
40.79 KiB
PDF
Convertor, Type M-134
Document A522098
111.15 KiB
PDF
Correction to Patent Application 588,344
Document A522115
35.56 KiB
PDF
Description and Operating Instructions for Converter, Type M-134-T1
Document A522108
194.31 KiB
PDF
Description of Cryptograph System
Document A522226
941.04 KiB
PDF
Distribution List
Document A522171
32.18 KiB
PDF
Distribution List with Handwritten Note
Document A522170
38.65 KiB
PDF
Distribution List with Handwritten Note
Document A522172
35.66 KiB
PDF
Distribution List with Handwritten Note
Document A522173
60.11 KiB
PDF
Distribution List with Handwritten Note from Friedman
Document A522152
50.44 KiB
PDF
Draft of "Military Characteristics Of A Cipher Machine" for Use In Message Centers of Division and Higher Headquarters
Document A522101
127.99 KiB
PDF
Examiner Responds to Amendment of June 22, 1933 Regarding Patent 588,344
Document A521940
32.56 KiB
PDF
Examiners Response to Patent Application No. 588, 344 Amendment Filed February 6, 1934
Document A521790
133.65 KiB
PDF
Extract from Report of Signal Corps Laboratories for Month of December, 1930
Document A522195
50.99 KiB
PDF
Folder Cover-Single-Commutator Cryptograph
Document A521766
58.11 KiB
PDF
Friedman Et AL-Cryptographic System Patent Application Serial No. 588,344
Document A522068
152.44 KiB
PDF
Friedman Forwards Memorandum of Interest to Signal Corps Laboratories
Document A522088
22.27 KiB
PDF
George A Graham Wants to Retain Original Patent Nr. 1,857,374
Document A522121
54.03 KiB
PDF
Improvement of the Stepping Arrangement
Document A522120
33.55 KiB
PDF
Information Regarding Cipher Invention
Document A522194
97.12 KiB
PDF
Information Regarding Cipher Machine Invention
Document A522233
149.44 KiB
PDF
Letter from Friedman to Signals Corps Laboratories
Document A522089
41.35 KiB
PDF
Letter Regarding Cipher Tapes and Discussion on Cipher Wheel Invention
Document A522188
75.11 KiB
PDF
Letter Regarding Development of Cipher Machine
Document A522181
59.82 KiB
PDF
Modification of Wiring Diagram on Blue Print Es-B-1177a
Document A522079
202.08 KiB
PDF
Note Regarding Conference
Document A522183
23.55 KiB
PDF
Object of Cipher Machine Invention with Drawings
Document A522164
2.15 MiB
PDF
Papers In the Case of the Cipher Machine Invention
Document A522128
2.96 MiB
PDF
Patent 2,028,772-Cryptographic System
Document A521770
927.7 KiB
PDF
Patent Application for Adapter
Document A522142
45.39 KiB
PDF
Patent Application Serial No. 588,344, Filed January 23, 1932 Cryptographic System
Document A522091
108 KiB
PDF
Patent Application, Serial No. 588,344 Cryptographic System
Document A522124
53.23 KiB
PDF
Patent Examiner Comments
Document A522127
61.35 KiB
PDF
Patent Examiner Responds to Amendment of September 26, 1932 Regarding Patent Application 588,344
Document A522097
63.99 KiB
PDF
Patent Examiner Responds to Patent Serial No. 588,344 Amendment Filed Feb. 26, 1935
Document A521775
70.89 KiB
PDF
Patent Examiners Response to Amendment Filed July 31, 1934
Document A521778
137.65 KiB
PDF
Patent Issues
Document A522123
68.88 KiB
PDF
Preliminary Report on Signal Corps Converter, Type M-134
Document A522114
263.74 KiB
PDF
Pros and Cons for Allowing Issuance of Patent
Document A522073
119.52 KiB
PDF
Recommendations and Comments Regarding Cipher Device
Document A522112
89.17 KiB
PDF
Record of Military Invention-Cryptographic System
Document A522146
166.52 KiB
PDF
Report on Signal Corps Converter, Type M-134
Document A522105
515.37 KiB
PDF
Report on Visit to the Signal Corps Laboratories by Mr. Friedman
Document A522154
214.57 KiB
PDF
Request for Sketches In Conjunction with Cipher Invention
Document A522259
38.02 KiB
PDF
Response to Amendment for Patent Application 588,344
Document A522094
27.69 KiB
PDF
Response to Patent Office Action Dated December 22, 1932 Regarding Patent Application 588,344
Document A522096
36.68 KiB
PDF
Response to Patent Office Action Dated September 21, 1933 for Patent 588,344
Document A521923
27.1 KiB
PDF
Response to Patent Office Action of April 1, 1935
Document A521773
53.75 KiB
PDF
Response to Patent Office Action of September 7, 1934 Re Patent Serial No. 588,344
Document A521776
176.98 KiB
PDF
Response to Patent Office Dated Feb 15, 1934 In Regard to Patent Serial No. 588,344
Document A521788
345.3 KiB
PDF
Specification for Field Cipher Machine
Document A522201
551.37 KiB
PDF
Specifications and Claims Applicable to Cipher Machine Invention
Document A522174
1.53 MiB
PDF
Status of Cipher Machine Speed
Document A522129
40.13 KiB
PDF
Status of Patent
Document A522125
48.28 KiB
PDF
Status of Patent Application Serial 588,344-M-134-T2
Document A522083
46.55 KiB
PDF
Status on the Progress of New Cipher Machine
Document A522090
70.95 KiB
PDF
Submission of A Copy of Patent to At&t
Document A522119
86.47 KiB
PDF
Submission of Patent Copy to At&t
Document A522118
31.01 KiB
PDF
Suggestions on Draft of Patent Application for Cipher Machine
Document A522155
86.32 KiB
PDF
Supplemental to Amendment for Patent Application 588,344
Document A522092
36.79 KiB
PDF
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