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2170535
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Information
Patent Grant
2170535
References
Source
Patent Number
2,170,535
Date Filed
Not available
Date Issued
Tuesday, August 22, 1939
85 years ago
CPC
G04D1/025 - Hand screws
Y10T29/49579 - Watch or clock making
US Classifications
081 - Tools
029 - Metal working
269 - Work holders
968 - Horology
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