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US Patent: 310,987
Drill Chuck
Patentee: James S. Church (exact or similar names) - Milwaukee, Milwaukee County, WI USPTO Classifications: 279/60, 279/64 Tool Categories: metalworking machines : drilling and boring : drill presses : drill press chucks Assignees: James S. Church - Milwaukee, Milwaukee County, WI George M. Hinkley - Milwaukee, Milwaukee County, WI Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Apr. 04, 1884 Granted: Jan. 20, 1885 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens

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