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US Patent: 465,478
Grinding Machine
Patentee:
Allen Johnston (exact or similar names) - Ottumwa, Wapello County, IA

USPTO Classifications:
29/DIG.101, 29/DIG.71, 451/273, 451/387

Tool Categories:
knives and cutters : sharpening apparatus

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Applied: Jan. 06, 1891
Granted: Dec. 22, 1891

Patent Pictures:
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