72054432
Jun 27, 1958
Sep 22, 1959
VISCOUS AND LIQUID MATERIAL FLOW GUNS AND PARTS THEREOF; CEMENT GUNS AND PARTS THEREOF; GUNS FOR APPLYING CATALYST AND ADHESIVE CHEMICAL MATERIALS, AND PARTS THEREOF; MIXERS AND BLENDERS FOR CHEMICAL MATERIALS; HOSE COUPLING MACHINES AND PARTS THEREOF; AND CONVEYOR LUBRICATOR MECHANISM
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