72014028
Aug 15, 1956
Mar 12, 1957
AGITATING, THICKENING, SEPARATING, CLASSIFYING AND/OR FLOTATION APPARATUS AND PARTS THEREFOR, FOR THE RECOVERY, THICKENING OR CLASSIFICATION OF SOLIDS FROM SOLUTIONS CONTAINING MATERIALS IN SUSPENSION, SUCH AS COAL, ORE, MINERALS, OR ORGANIC MATERIALS
Yarns and Threads