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US Patent: 457,079
Machine for grinding mower-knives
Patentee:
Rufus Dutton (exact or similar names) - New York, NY

USPTO Classifications:
451/122, 451/294

Tool Categories:
agricultural : sharpeners
metalworking machines : grinders : sharpening machines

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Bernard J. Isecke
John G. Agar
Patent Dates:
Applied: Nov. 10, 1890
Granted: Aug. 04, 1891

Patent Pictures:
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward Jeff Joslin
Description:
Improvements to patents 342,290, 359,964, and 395,615.

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