Separation of molybdenite from copper sulphides
United States Patent 2187930

Inventors:
Brown, Earl H.
Williams, Carl F.
Publication Date:
01/23/1940
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Assignee:
Minerals, Separation North US.
Primary Class:
209/167
Other Classes:
562/88
International Classes:
B03D1/02; B03D1/06; B03D1/00