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US Patent: 132,231
Improvement in Grinding Apparatus
Patentee:
Albert Assman - Linden, NJ

USPTO Classifications:
451/188, 451/331

Tool Categories:
metalworking machines : grinding machines

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
A. V. Briesen
T. B. Mosher
Charles Nida
C. Seugarek

Patent Dates:
Granted: Oct. 15, 1872

Patent Pictures:
USPTO pdf tiff
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