Concentration of comminuted materials
United States Patent 2938629
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Inventors:
Hollingsworth, Clinton A.
Mcdonald, Charles J.
Publication Date:
05/31/1960
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Assignee:
SMITH DOUGLASS COMPANY INC
Primary Class:
209/170
Other Classes:
261/DIG.075
International Classes:
B03D1/24; B03D1/14
US Patent References:
1720264Flotation machine for graphite and other minerals
2241337Liquid agitating and siphon break apparatus
2272818Method of treating solutions
2624657Submerged blast reaction tank