U.S. federal trademark · Serial No. 72289098 · Reg. No. 0880388
MACHINES FOR CLASSIFYING OR SORTING FINELY DIVIDED SOLID MATERIALS COMPRISED OF A MIXTURE OF RELATIVELY FINE AND COARSE PORTIONS, BY THE ACTION OF A GASEOUS STREAM OR STREAMS WHEREIN THE FINE PORTION OR PORTIONS OF THE FINELY DIVIDED SOLID MATERIALS IS SELECTIVELY COLLECTED IN A GASEOUS STREAM OR STREAMS SEPARATE FROM THE RELATIVELY COARSE PORTION OR PORTIONS
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