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US Patent: 183,798
Improvement in Tools for Sharpening Drills
Patentee: Amos F. Champlin (exact or similar names) - Hartford, CT USPTO Classifications: 451/367, 451/375 Tool Categories: metalworking machines : grinders : sharpening machines : bench or pedestal grinders woodworking tools : hand drills : drill bits : twist drill bits Assignees: None Manufacturer: Not known to have been produced Witnesses: Theo. G. Ellis John T. Peters	Patent Dates: Applied: Aug. 12, 1876 Granted: Oct. 31, 1876 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin (dm)

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