Recovery of metal values from complex ores
United States Patent 2927017

Inventors:
Marvin, Orrin F.
Publication Date:
03/01/1960
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Assignee:
Marvin, Orrin F.
Primary Class:
Other Classes:
75/424, 423/95, 75/423, 75/431
International Classes:
C22B3/08; C22B3/00