23 [AIR COMPRESSORS, SEPARATELY AND IN COMBINATION WITH MOTORS OR ENGINES, PARTS THEREOF, AND ACCESSORIES THEREFOR-NAMELY, SPRAY GUNS, GREASE GUNS, AND DUSTING GUNS, AND] NON-MEASURING PUMPS, BOTH HAND OPERATED AND POWER OPERATED, FOR HANDLING GASOLINE, OILS, AND OTHER LIQUIDS [AND POWER ATOMIZERS]