Title:
Placer-mining classifier
United States Patent 1489975


Inventors:
George, Bluhm Charles
Application Number:
US62263523A
Publication Date:
04/08/1924
Filing Date:
03/03/1923
Assignee:
George, Bluhm Charles
Primary Class:
Other Classes:
209/299
International Classes:
B03B5/56
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