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US Patent: 813,864
Drill-chuck Ball-bearing drill chuck
Patentee: Harry L. Coit (exact or similar names) - New London, CT USPTO Classifications: 279/61 Tool Categories: metalworking machines : drilling and boring : drill presses : drill press chucks woodworking machines : wood drilling and boring : drill presses : drill press chucks Assignees: None Manufacturer: Standard Machinery Co. (Mystic) - Mystic, CT Narragansett Machine Co. - Providence, RI Witnesses: Horace R. Gardner, Jr. M. Wilson Dart	Patent Dates: Applied: Sep. 03, 1904 Granted: Feb. 27, 1906 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Standard Machinery Co. (Mystic) Vintage Machinery entry for Narragansett Machine Co.

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