Title:
Attritive cleaning and finishing device
United States Patent 2415844
Inventors:
Perkins, George C. H.
Publication Date:
02/18/1947
Export Citation:
Assignee:
Perkins, George C. H.
Primary Class:
International Classes:
B24C3/32; B24C3/00
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US Patent References:
Foreign References:
GB332849A