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US Patent: 1,415,331
Grinding wheel
Patentee:
Edward B. Gardner (exact or similar names) - Beloit, WI

USPTO Classifications:
15/230, 451/548

Tool Categories:

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown
Patent Dates:
Applied: Apr. 08, 1920
Granted: May 09, 1922

Patent Pictures:
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