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1310783
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Patent Grant
1310783
References
Source
Patent Number
1,310,783
Date Filed
Not available
Date Issued
Tuesday, July 22, 1919
105 years ago
CPC
G04C11/007 - by positioning of the index or by regulating the length of the pendulum in dependance on the time difference with a standard
US Classifications
368 - Horology: time measuring systems or devices
968 - Horology
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