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US Patent: 284,275
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Patentee: John Chantrell (exact or similar names) - Bridgeport, CT USPTO Classifications: 279/40 Tool Categories: woodworking tools : hand drills : drill chucks Assignees: Hazeltine & Chantrell - Bridgeport, CT Manufacturer: Hazeltine & Chantrell - Bridgeport, CT Witnesses: F. B. Keppy H. E. Bowser	Patent Dates: Applied: May 16, 1883 Granted: Sep. 04, 1883 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin

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