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Patent number:
Patent Date:
US Patent: 485,697
Art of Grinding Cutlery or Other Tempered Steel Articles
Patentee:
Allen Johnston (
exact
or
similar
names) - Ottumwa, Wapello County, IA
USPTO Classifications:
451/45
Tool Categories:
knives and cutters
:
sharpening apparatus
Assignees:
None
Manufacturer:
Not known to have been produced
Witnesses:
Unknown
Patent Dates:
Applied:
Jun. 13, 1888
Granted:
Nov. 08, 1892
Patent Pictures:
USPTO
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Google Patents
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