Sensing and control apparatus for classifiers
United States Patent 3114510

Inventors:
Mccarty, James P.
Curtis, Charles H.
Publication Date:
12/17/1963
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Assignee:
DUVAL SULPHUR & POTASH COMPANY
Primary Class:
Other Classes:
209/726, 209/548, 209/720
International Classes:
B04C11/00
Foreign References:
GB808914A