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1917481
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Information
Patent Grant
1917481
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Source
Patent Number
1,917,481
Date Filed
Not available
Date Issued
Tuesday, July 11, 1933
91 years ago
CPC
G04C23/20 - with contacts operated, or formed by clock hands or elements of similar form
US Classifications
200 - Electricity: circuit makers and breakers
174 - Electricity: conductors and insulators
968 - Horology
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