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3571711
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Information
Patent Grant
3571711
References
Source
Patent Number
3,571,711
Date Filed
Not available
Date Issued
Tuesday, March 23, 1971
53 years ago
CPC
G04C23/20 - with contacts operated, or formed by clock hands or elements of similar form
US Classifications
375 - Pulse or digital communications
340 - Communications: electrical
368 - Horology: time measuring systems or devices
968 - Horology
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