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US Patent: 667,321
Edge Tool Grinder
Patentee:
Martin L. Keyes - 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 pdf tiff
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