73082559
Apr 2, 1976
Sep 26, 1978
CHECK VALVES; SLURRY, SOLIDS-LADEN OR ABRASIVE/CORROSIVE-RESISTANT TYPE CENTRIFUGAL HYDRAULIC PUMP SYSTEMS AND CENTRIFUGAL PUMPS THEREFOR AND PARTS THEREOF CONSISTING OF PUMP CASING, CASING LINERS, IMPELLOR, SHAFT, DRIVE MOTOR, BEARINGS, SEALS, CONNECTING GEARS, SHEAVES, DRIVE BELTS AND FRAME; GRINDING MILL LINERS AND GRINDING MILL GRATES; SCREEN DECKS; AND CHUTE LINERS
Machinery