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US Patent: 817,936
Chuck
Patentee: Hubert P. Richards (exact or similar names) - New Britain, CT USPTO Classifications: 279/40 Tool Categories: woodworking tools : hand drills : drill chucks Assignees: None Manufacturer: Not known to have been produced Witnesses: W. J. Woram E. G. Hoffman	Patent Dates: Applied: Jan. 30, 1906 Granted: Apr. 17, 1906 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward George Langford

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