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3598968
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Patent Grant
3598968
References
Source
Patent Number
3,598,968
Date Filed
Not available
Date Issued
Tuesday, August 10, 1971
53 years ago
CPC
G06K19/067 - Record carriers with conductive marks, printed circuits or semiconductor circuit elements
G06K7/085 - metal detectors
G07C9/00103 - with central registration and control
US Classifications
235 - Registers
331 - Oscillators
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