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3849599
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Information
Patent Grant
3849599
References
Source
Patent Number
3,849,599
Date Filed
Not available
Date Issued
Tuesday, November 19, 1974
49 years ago
CPC
G09C3/04 - wherein the operative connections between the keys and the type-bars are automatically and continuously permuted, during operation, by a coding or key member
US Classifications
370 - Multiplex communications
377 - Electrical pulse counters, pulse dividers, or shift registers: circuits and systems
380 - Cryptography
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