Grinding device
United States Patent 2107921

Inventors:
Weed, Walter A.
Publication Date:
02/08/1938
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Assignee:
Weed, Walter A.
Primary Class:
451/226
Other Classes:
451/396, 451/278, 451/216, 451/380, 451/231, 451/276
International Classes:
B24B41/06