Computer Security Corp.

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5161190 System for encryption and identificationExpiredOct 05, 90Nov 03, 92[G06F]
4962530 System for cryptographing and identificationExpiredSep 10, 87Oct 09, 90[G06F]
4801935 Apparatus and method for security of electric and electronic devicesExpiredApr 26, 88Jan 31, 89[H04R]
4636590 Method and apparatus for converting frequency signals representing characters to binary codeExpiredDec 31, 84Jan 13, 87[H04M]

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