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US Patent: 233,097
Watchmakers Lathe Chuck
Patentee: Caleb Hopkins (exact or similar names) - Waltham, Middlesex County, MA USPTO Classifications: 279/17 Tool Categories: metalworking machines : metal lathes : metal lathe chucks metalworking machines : metal lathes : watchmakers lathes trade specific : watchmaker Assignees: None Manufacturer: Not known to have been produced Witnesses: Frederick Boardman Humphrey Waddington	Patent Dates: Applied: Jul. 30, 1878 Granted: Oct. 12, 1880 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Steve Gosselin

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