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US Patent: 301,466
Lathe Chuck
Patentees: Caleb Hopkins (exact or similar names) - Waltham, Middlesex County, MA Charles E. Van Norman (exact or similar names) - Waltham, Middlesex County, MA USPTO Classifications: 279/158, 279/16 Tool Categories: metalworking machines : metal lathes : metal lathe chucks trade specific : watchmaker metalworking machines : metal lathes : watchmakers lathes Assignees: None Manufacturer: Not known to have been produced Witnesses: Fred D. Van Norman F. M. Beckwith	Patent Dates: Applied: Mar. 08, 1883 Granted: Jul. 01, 1884 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Steve Gosselin "Vintage Machinery" entry for Waltham Watch Tool Co.

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