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Files W.F.F. Archive Patent and Equipment Records Application for Patent on Electrical Cryptograph and Related Correspondence, 1944-1959
Acting U.S. Secretary of War Communication on Patent Application Serial No. 549,086-Electrical System
Document A363152
50.13 KiB
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Amendment to Patent Application Serial No. 549,086-Electrical System
Document A363188
49.61 KiB
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Amendment to Patent Application Serial No. 549,086-Electrical System
Document A363195
122.18 KiB
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Amendment to Patent Application Serial No. 549,086-Electrical System
Document A363245
58.04 KiB
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Amendment to Patent Application Serial No. 549,086-Electrical System
Document A363248
91.09 KiB
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Amendment to Patent Application Serial No. 549,086-Electrical System
Document A363254
107.51 KiB
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Amendment to Patent Application Serial No. 549,086-Electrical System
Document A363258
205.22 KiB
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Amendment to Patent Application Serial No. 549,086-Electrical System
Document A363272
137.29 KiB
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Amendment to Patent Application Serial No. 549,086-Electrical System
Document A363282
124.04 KiB
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Application for Patent Ser. No. 549086
Document A363081
83.81 KiB
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Application for Patent Ser. No. 549086
Document A363089
54.3 KiB
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Application for Patent Ser. No. 549086
Document A363090
148.31 KiB
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Army Service Forces Communication on William F. Friedman's Patent Application Entitled "Electrical System"
Document A363161
121.21 KiB
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Army Service Forces Request Regarding Handling of Patent Application on Electrical System by William F. Friedman
Document A363156
33.63 KiB
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ASA Official Cites Minor Changes to Document
Document A362942
34.21 KiB
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ASA Official Comments on SIGFOY Case In Note to W.F. Friedman
Document A362937
57.17 KiB
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ASA Official Comments on the SIGFOY
Document A362951
57.7 KiB
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Assignment In the Case of William F. Friedman, Inventor of Electrical System
Document A363341
82.2 KiB
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Certificate Issued by War Department Regarding Invention of William F. Friedman "Electrical System"
Document A363304
30.74 KiB
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Change of Address for ASA Attorney on the Case Involving Patent Application Ser. No. 549,086-Electrical System
Document A363295
36.26 KiB
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Corrections to Drawings In Patent Application Ser. No. 549,086-Electrical System
Document A363298
134.88 KiB
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Crypto Machine Drawings
Document A4164178
220.22 KiB
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Dept. of Commerce Classified Material Receipt-Patent Office Final Rejection of Patent Application Ser. No. 549,086
Document A363292
42.63 KiB
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Description of "Electrical System, " Invention Of William F. Friedman
Document A363201
1.03 MiB
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Development Branch Comments
Document A362953
36.42 KiB
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Diagrams of Invention by William F. Friedman
Document A363287
116.92 KiB
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Draft-Description of William F. Friedman's Invention of Electric Cryptographic Devices
Document A363367
1.73 MiB
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Electrical System-Inventor: William F. Friedman
Document A363214
69.01 KiB
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Form for Petition for Patent by William F. Friedman
Document A363373
77.84 KiB
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Form for Petition for Patent by William F. Friedman
Document A363377
92.23 KiB
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Forms of Mr. William F. Friedman
Document A363158
71.65 KiB
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Friedman Claims; Handwritten Note Re M.I.T
Document A363369
22.26 KiB
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Friedman Complements Work of ASA Official
Document A362933
40.84 KiB
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Information on Invention by William F. Friedman-Patent Application Serial No. 549,086-Electrical System
Document A363265
73.55 KiB
PDF
JAG Request Regarding Patent Application Serial No. 549,086-Electrical System
Document A363107
62.92 KiB
PDF
License In the Case of William F. Friedman, Inventor of Electrical System
Document A363342
58.35 KiB
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Patent Application Serial No. 549,086
Document A363130
100.55 KiB
PDF
Patent Application Serial No. 549,086-William F. Friedman-Filed 11 August 1944
Document A363097
42.29 KiB
PDF
Patent Application Serial Number 549,086-Electrical System
Document A363073
136.81 KiB
PDF
Petition In the Case of William F. Friedman, Inventor of Electrical System
Document A363326
88.49 KiB
PDF
Power of Attorney In Case of Patent Application Ser. No. 549,086-Electrical System
Document A363301
40.87 KiB
PDF
Power of Attorney In Case of Patent Application Serial No. 549,086-Electrical System
Document A363122
32.75 KiB
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Receipt of Converter Equipment
Document A362961
21.11 KiB
PDF
Receipt of Model, T-3, Converter M-325, Inventor William F. Friedman
Document A363181
19.12 KiB
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Rescinding Order-Patent Application Serial Number 549,086-Electrical System
Document A363075
51.71 KiB
PDF
Revocation of Power of Attorney In Case of Patent Application Ser. No. 549,086-Electrical System
Document A363300
41.86 KiB
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Secrecy Orders-Patent Application Serial No. 549,086-Electrical System
Document A363148
39.05 KiB
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Secretary of the Army Request Regarding Patent Application Serial No. 549,086-Electrical System
Document A363132
53.79 KiB
PDF
Secretary of War Communication on Invention of William F. Friedman
Document A363349
30.77 KiB
PDF
Semiannual or Transfer Report of Registered Documents (or Devices)-SIGFOY Case
Document A363166
103.13 KiB
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the SIGFOY Case
Document A362959
38.74 KiB
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the SIGFOY Case
Document A363095
42.53 KiB
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Transfer Report of Registered Devices-M325 (Model T-3)
Document A363175
100.68 KiB
PDF
U.S. Patent Office Communication Concerning Patent Application Serial No. 549,086-Electrical System
Document A363110
38.37 KiB
PDF
U.S. Patent Office Communication on Amendment to Patent Application
Document A363200
62.7 KiB
PDF
U.S. Patent Office Communication on Claims of Patent Application Serial No. 549,086-Electrical System
Document A363199
380.33 KiB
PDF
U.S. Patent Office Communication on Patent Application Serial No. 549,086-Electrical System
Document A363100
46.42 KiB
PDF
U.S. Patent Office Communication on Patent Application Serial No. 549,086-Electrical System
Document A363104
37.15 KiB
PDF
U.S. Patent Office Communication on Patent Application Serial No. 549,086-Electrical System
Document A363106
43.47 KiB
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U.S. Patent Office Communication on Patent Application Serial No. 549,086-Electrical System
Document A363113
32.92 KiB
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U.S. Patent Office Communication on Patent Application Serial No. 549,086-Electrical System
Document A363127
61.69 KiB
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U.S. Patent Office Communication on Patent Application Serial No. 549,086-Electrical System
Document A363257
191.76 KiB
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U.S. Patent Office Communication Regarding Patent Application Serial No. 549,086-Electrical System
Document A363109
37.95 KiB
PDF
U.S. Patent Office Examiner Communication Concerning Patent Application Serial No. 549,086 for Electrical Cryptograph
Document A362973
82.16 KiB
PDF
U.S. Patent Office Final Fee Receipt; Patent # 2877565, Electrical Cryptograph
Document A362956
26.97 KiB
PDF
U.S. Patent Office Form
Document A362929
29.72 KiB
PDF
U.S. Patent Office Issuance of Permit A and Secrecy Order-Patent Application Serial No. 549,086-Electrical System
Document A363120
157.53 KiB
PDF
U.S. Patent Office Notice of Allowability-Patent Application Serial No. 549,086-Electrical System
Document A363192
42.85 KiB
PDF
U.S. Patent Office Notice of Allowance
Document A363064
53.1 KiB
PDF
U.S. Patent Office on Amendment Filed to Patent Application Serial No. 549,086-Electrical System
Document A363251
60.33 KiB
PDF
U.S. Patent Office Patent Number 2,877,565-Electrical Cryptograph
Document A362968
400.42 KiB
PDF
U.S. Patent Office Response to Amendment to Patent Application Serial No. 549,086-Electrical System
Document A363256
101 KiB
PDF
W. F. Friedman Forwards Signed Papers to ASA Official; Routing Slip Only
Document A362931
43.23 KiB
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W.F. Friedman Comments on Authentication Function and Crypto Function
Document A362945
53.74 KiB
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William F. Friedman Correspondence with U.S. Secretary of War on Patent Application Serial No. 549,086-Electrical System
Document A363144
43.35 KiB
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William F. Friedman's Application for Letters Patent-Electric Cryptographic Devices
Document A363395
58.92 KiB
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William F. Friedman's Sketch of Device
Document A363371
81.22 KiB
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Wiring Diagram Authenticator-M325 Converter; William F. Friedman-Inventor
Document A363401
94.83 KiB
PDF
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