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US Patent: 503,127
Machine for grinding mower-knives
Patentee: Rufus Dutton (exact or similar names) - New York, NY USPTO Classifications: 451/122 Tool Categories: agricultural : sharpeners metalworking machines : grinders : sharpening machines Assignees: None Manufacturer: Not known to have been produced Witnesses: Irving E. Smith Bernard J. Isecke	Patent Dates: Applied: Jan. 17, 1891 Granted: Aug. 15, 1893 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin

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