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Files W.F.F. Archive Patent and Equipment Records Patent Data SISDE-18, Application No. 478,868, System for Enciphering and Deciphering Telephotograms, Friedman and Mauborgne (1943), 1924-1947
Amendment to Application for Patent 478,868 of William F. Friedman and Joseph O. Mauborgne; Responds to Patent Office Comments of 9 June 1948
Document A105094
127.44 KiB
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Amendment to Patent Application 478,868 of William F. Friedman and Joseph O. Mauborgne; Patent for System for Enciphering Facsimile
Document A105128
64.14 KiB
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Applications for Patents by William Friedman and Colonel Mauborgne; Memo from Major Browning, Signal Corps Patent Board
Document A105139
33.88 KiB
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Cover Letter for Two Methods of Enciphering Facsimile
Document A105146
35.73 KiB
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Draft Description of Mauborgne's and Friedman's Method for Secret Transmission and Reception of Photographs by Electric Means
Document A105153
1.04 MiB
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Friedman and Mauborgne Patent Applications; Army Security Agency Memos Agreeing to Declassification & Release of Patent Applications
Document A105124
135.11 KiB
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Friedman and Mauborgne to U.S. Patent Office-Amendments to Patent Claim No. 478,868
Document A114610
138.35 KiB
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Letter from Mauborgne, Wright Field, to William F. Friedman; Patent Application
Document A105141
98.62 KiB
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Letter from William Friedman to Colonel Mauborgne, Signal Corps, Wright Field; Acknowledgement of Previous Letter from Colonel Mauborgne
Document A105140
32.13 KiB
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Letter to Colonel Mauborgne with Photostats of A Method of Enciphering Facsimile
Document A105147
28.49 KiB
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Patent Application of Friedman and Mauborgne, SN 478,868; Letter from S. Kullback to Chief Signal Officer's Legal Division
Document A105127
22.12 KiB
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Patent Application on Facsimile Encipherment; Memo from William Friedman to Mr. Hall, Patents Sec, Legal Div, OCSIGO
Document A105137
37.66 KiB
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Patent Applications of William F. Friedman, S.N. 478,868 and 478,193; Memos Regarding Rescinding Secrecy
Document A105101
88.54 KiB
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Patent Examiner Rejection of Claim 4 Serial 478,868 Friedman Patent Application; Patent of System for Enciphering Facsimile
Document A114619
52.66 KiB
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Petition for Patent by William F. Friedman and J.O. Mauborgne for A System for Enciphering Facsimile; Petition to Commissioner of Patents and Specification of Invention
Document A105132
698.59 KiB
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Proposal for Secrecy In the Jenkins Radio Picture System
Document A105150
57.67 KiB
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Routing and Work Sheet
Document A4161575
26.87 KiB
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Signal Corps Patent Board Findings Regarding Inventions by Mauborgne and Friedman
Document A105142
36.4 KiB
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Sketches of Mauborgne's and Friedman's System for Enciphering Facsimile
Document A105148
149.96 KiB
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U.S. Patent Applications Friedman and Mauborgne S.N. 478,868 and Friedman S.N. 478,193; Letter to William Friedman from Patents & Inventions Counsel, Signal Corps
Document A105136
43.26 KiB
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William Friedman & Colonel Mauborgne's Joint Application for A Patent Entitled "System For Enciphering Facsimile"; Letter from Office of Legal Director, Signal Corps
Document A105134
79.21 KiB
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William Friedman Etal Patent Application 478,868, System for Enciphered Facsimile; Memo from U.S. Patent Office to Legal Division, Chief Signal Officer
Document A105098
49.68 KiB
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