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US Patent: 129,548
Improvement in devices for grinding rotary cutters
Patentee:
John J. Grant (exact or similar names) - Greenfield, MA

USPTO Classifications:
144/138, 451/150, 451/421

Tool Categories:
woodworking machines : machine and tool cutters : cutter grinding

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown
Patent Dates:
Granted: Jul. 16, 1872

Patent Pictures:
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