Engines, other than for land vehicles; compressed air engines, other than for land vehicles; motors, other than for land vehicles; superchargers, namely, air compressors for internal combustion engines, other than for land vehicles; superchargers for compressors, other than for land vehicles; injectors for engines, other than for land vehicles; parts of engines, namely, joints, other than for land vehicles; pistons for engines, other than for land vehicles; piston rings, other than for land vehicles; exhaust manifold for engines, other than for land vehicles; anti-pollution devices for motors and engines, other than for land vehicles; cylinders for motors and engines, other than for land vehicles; cylinders for machines; cylinder heads for engines, other than for land vehicles; cylinder heads for machines; cylinder head gaskets for machines; fans for motors and engines, other than for land vehicles; cooling radiators for motors and engines, other than for land vehicles; mufflers for motors and engines, other than for land vehicles; silencers for motors and engines, other than for land vehicles; exhaust silencers for engines, other than for land vehicles; exhausts for motors and engines, other than for land vehicles; parts of machines, namely, expansion tanks; oil filters for motors and engines, other than for land vehicles; filters for motors and engines, other than for land vehicles; filters for compressors; filters for cleaning cooling air, for engines, other than for land vehicles; turbochargers for machines; air turbines, other than for land vehicles; pneumatic controls for motors and engines, other than for land vehicles; oil coolers for engines, other than for land vehicles; connecting rods for machines; connecting rods for motors and engines, other than for land vehicles; blowing machines for the compression, exhaustion and transport of gases; plunger pistons for engines, other than for land vehicles; pumps as parts of machines; pumps as parts of engines and motors, other than for land vehicles; compressed air pumps; lubricating pumps, other than for land vehicles; compressors for machines; compressors as parts of machines; compressors as parts of motors and engines, other than for land vehicles; compressed air machines; compressors for refrigerators; reciprocating compressors; air compressors, other than for land vehicles; rotary compressors; compressors for recovering and recycling refrigerant gases; pump diaphragms; pistons for compressors; pump impellers; roller bearings for use in machines, namely, compressors; ball-bearings for use in machines, namely, compressors; anti-friction bearings for machines; self-oiling bearings as parts of machines, other than for land vehicles; bearings as parts of machines; roller bearings for machines; bearing housings for machines; bushings for use as parts of machines; bearing brackets for machines; bearing inserts for machines; parts of machines, namely, cranks; crank shafts for compressors, other than for land vehicles; transmission shafts, other than for land vehicles; shafts for pumps; shaft couplings as parts of machines; parts of machines, namely, grease boxes; parts of machines, namely, journals; parts of machines, namely, journal boxes; parts of machines, namely, hangers; parts of machines, namely, stuffing boxes; axles for machines; anti-friction pads for machines; gears for machines; machine wheelwork; clutches other than for land vehicles; torque converters other than for land vehicles; freewheels other than for land vehicles; machine fly-wheels; pulleys being parts of machines; adhesive bands for pulleys, other than for land vehicles; belts for machines; driving chains other than for land vehicles; transmissions, other than for land vehicles; linear actuators, other than for land vehicles; pistons for machines; cams being parts of machines; fluid couplings being parts of machines; shock absorbers for machines; springs being parts of machines; pressure regulators being parts of machines; pressure reducers as parts of machines; parts of machines, namely, clack valves; valves as machine components; parts of machines, namely, pressure valves; automatic inlet control valves for reciprocating air compressors; ball valves being parts of machines; unloading check valves for the outlets of air compressors, other than for land vehicles; butterfly valves being parts of machines; angle valves being parts of machines; thermostatic control valves for machines; drain cocks, other than for land vehicles; pressure switches as parts of machines; parts of compressors and engines, namely, filters; carburetors, other than for land vehicles; de-aerators being machines for feedwater for steam generating boilers; steam/oil separators; hydraulic turbines; wind turbines; pistons for cylinders, other than for land vehicles; piston segments for machines and engines, other than for land vehicles; stators being parts of machines; crankcases for machines; crankcases for motors and engines, other than for land vehicles; parts of machines, namely, grease rings; parts of machines, namely, pistons; parts of engines, namely, pistons, other than for land vehicles; cam shafts, other than for land vehicles; machine coupling and transmission components, except for land vehicles, and parts therefor; compressed air machine components, namely, cylinders, valves and air grips