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1979398
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Information
Patent Grant
1979398
References
Source
Patent Number
1,979,398
Date Filed
Not available
Date Issued
Tuesday, November 6, 1934
90 years ago
CPC
G04C15/0081 - Automatic stabilisation of net frequency with regard to time
G04B17/00 - Mechanisms for stabilising frequency
US Classifications
188 - Brakes
968 - Horology
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