Title:
Process for cleaning coal by dense medium
United States Patent 3031074

Inventors:
Hirosaburo, Osawa
Publication Date:
04/24/1962
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Assignee:
Hirosaburo, Osawa
Primary Class:
Other Classes:
209/172.500
International Classes:
B03B5/30; B03B5/28
US Patent References:
2686593Production and use of stabilized suspensions in water
2690261Concentration of minerals
Foreign References:
GB616425A