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US Patent: 493,857
Drill-chuck
Patentee: Charles E. Billings (exact or similar names) - Hartford, CT USPTO Classifications: 279/67 Tool Categories: metalworking machines : drilling and boring : drill presses : drill press chucks woodworking tools : hand drills : drill chucks woodworking machines : wood drilling and boring : drill presses : drill press chucks Assignees: None Manufacturer: Not known to have been produced Witnesses: Henry L. Reckard F. C. Billings	Patent Dates: Applied: May 10, 1892 Granted: Mar. 21, 1893 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin

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