72369177
Aug 27, 1970
Nov 2, 1971
PUMP IMPELLERS, PUMP FACE PLATE LINERS, PUMP FOLLOWER PLATES, FLOTATION IMPELLERS, FLOTATION DIFFUSERS, FLOTATION AGITATORS, CHUTE LINERS, HYDROCYCLONES AND PARTS THEREFOR, ROLLS AND ROLLERS, WIPER BLADES FOR INDUSTRIAL USES, WEAR SHOES, BEARING BLOCKS, AND BEARING INSERTS, MADE SUBSTANTIALLY OF POLYURETHANE WITH OR WITHOUT METAL INSERTS OR SUPPORTS
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