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US Patent: 667,321
Edge Tool Grinder
Patentee: Martin L. Keyes (exact or similar names) - Carthage, Jefferson County, NY USPTO Classifications: 144/138, 451/140, 451/144, 451/152, 451/160, 451/374, 451/398, 451/404, 76/41 Tool Categories: metalworking machines : grinders : sharpening machines Assignees: Frank E. Robinson - Carthage, Jefferson County, NY Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Dec. 05, 1899 Granted: Feb. 05, 1901 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens

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