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3484588
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Information
Patent Grant
3484588
References
Source
Patent Number
3,484,588
Date Filed
Not available
Date Issued
Tuesday, December 16, 1969
55 years ago
CPC
G06K21/04 - in which coincidence of markings is sensed optically
G06K7/10 - by electromagnetic radiation
US Classifications
235 - Registers
250 - Radiant energy
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