73043450
Feb 5, 1975
Feb 8, 1977
PRESSED AND SINTERED ARTICLES, BOTH POROUS AND NONPOROUS, FORMED FROM FILLED OR UNFILLED SYNTHETIC POLYMERIC POWDERS, IN THE FORM OF BEARINGS, THRUST WASHERS, GEARS, WEAR PLATES, CAMS, RUBBING BLOCKS, INK ROLLS, AND DEWATERING ROLLS
Machinery