Title:
Secrecy system
United States Patent 2547515
US Patent References:
/1310719.html
- - 1310719
Secret-signaling apparatus for automatically enciphering and deciphering messages
- - 1522775
Cryptographic telegraph system
- - 2405569
Telegraph system
- - 2406829
/1310719.html
- - 1310719
Secret-signaling apparatus for automatically enciphering and deciphering messages
- - 1522775
Cryptographic telegraph system
- - 2405569
Telegraph system
- - 2406829
Inventors:
Zenner, Walter J.
Publication Date:
04/03/1951
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Export Citation:
Assignee:
TELETYPE CORP
Primary Class:
Other Classes:
380/51
International Classes:
H04L9/38