71529093
Jul 21, 1947
Sep 12, 1950
BALLS USED IN BEARINGS, ROLLERS USED IN BEARINGS, BALLS USED IN MACHINES-NAMELY, [ SHOE MACHINERY, PEARL AND ] BONE BUTTON MACHINERY, AIRCRAFT ENGINES, FLOOR SURFACING MACHINERY, TOBACCO WEIGHING AND FILLING MACHINERY, SPRAYERS, WOODWORKING MACHINERY, [ ADDRESSING AND DUPLICATING MACHINES, ] MACHINE TOOLS, COAL CONVEYING MACHINERY, ASH CONVEYING MACHINERY, MILKING MACHINERY, TRACTORS, CARBURETORS,LAUNDRY MACHINERY, AIR BRAKES, GREASE AND OIL GUNS, PLASTIC MOLDING MACHINERY, PUMPS, DRILLING MACHINES, METAL PUNCHING AND EMBOSSING MACHINERY, THRESHING MACHINES, FIRE EXTINGUISHERS, LOCOMOTIVE BOOSTERS AND METAL BALLS USED IN GRINDING, BURNISHING, SIZING, AND POLISHING
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