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Title:
Apparatus for enciphering-deciphering teleprinter communications
United States Patent 3051783
Inventors:
Rudolf, Hell
Roman, Koll
Application Number:
US82134259A
Publication Date:
08/28/1962
Filing Date:
06/17/1959
Assignee:
Rudolf, Hell Kommanditgesellsch
Primary Class:
International Classes:
G06F7/58; G09C1/12; H04L9/18; H04L9/22; H04L9/38
View Patent Images:
US Patent References:
2899498N/A1959-08-11
2874215Two-tape cipher system1959-02-17
2785224Enciphering device1957-03-12