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3789196
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Information
Patent Grant
3789196
References
Source
Patent Number
3,789,196
Date Filed
Not available
Date Issued
Tuesday, January 29, 1974
50 years ago
CPC
G06M1/274 - using magnetic means using Hall-effect devices
G06M3/024 - by adding
US Classifications
235 - Registers
368 - Horology: time measuring systems or devices
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