7 Engines, other than for land vehicles; gas turbines, other than for land vehicles; gasoline engines, other than for land vehicles; jet engines, other than for land vehicles; turbines, other than for land vehicles; turbojet engines for aircraft; turboprop engines for aircraft; diesel engines, other than for land vehicles; ramjet engines, other than for land vehicles; rocket engines, other than for land vehicles; compressed air engines, other than for land vehicles; driving motors, other than for land vehicles; air turbines, other than for land vehicles; motors, other than for land vehicles; aircraft engines; steam turbines, other than for land vehicles; steam engines; propulsion mechanisms, namely, ramjet engines other than for land vehicles; hydraulic engines and motors; hydraulic turbines, other than for land vehicles; engines for marine vessels; internal combustion engines for power generation, not for land vehicles; engine mounts, other than for land vehicles; steam engine boilers; pistons for machines; engine camshafts, other than for land vehicles; pistons for cylinders; superchargers for internal combustion engines; pistons for engines; fuel injectors; mechanical engine parts for land vehicles; fuel injection devices for internal combustion engines; engine parts, namely, ignition coils; engine bearings; crank shafts for automobile engines; parts of machines, namely, journals boxes; bushings for use as parts of machines; shafts for pumps; bearings as parts of machines; shaft couplings for machines; bearings for machines, namely, roller bearings and anti-friction bearings; axles for machines; shaft couplings, other than for land vehicles; ball rings for bearings for machines, namely, internal combustion engines for land vehicles; transmission shafts, other than for land vehicles; bearings for transmission shafts, being parts of machines; power transmissions and gearing being parts of machines, not for land vehicles; engine timing components, namely, cam sprockets; gears, other than for land vehicles; clutches, other than for land vehicles; torque converters, other than for land vehicles; pulleys being parts of machines; linear actuators; speed governors for machines, engines and motors; belts for machines; transmission gears for machines; power transmission belts for machines; driving chains, other than for land vehicles; pneumatic valve actuators; timing belt and fan belts for motors and engines; reduction gears, other than for land vehicles; transmission belts, other than for land vehicles; transmissions, other than for land vehicles; power transmission belts for machines; dynamo belts; speed change gears being parts of machines; fluid couplings being parts of machines, not for land vehicles; springs being parts of machines; spring shock absorbers for machines; shock absorbers for machines; brakes for machines; brake shoes, other than for vehicles; brake segments, other than for vehicles; brake linings, other than for vehicles; block brakes, other than for land vehicles; brake linings for machines; disc brakes for machines; brake pads, other than for vehicles; valves being parts of pumps; valves being parts of machines; pressure regulators being parts of machines; clack valves for machine; pressure reducers being parts of machines; drain cocks; proportional flow valves being parts of machines; starters for engines; starters for motors; AC generators in the nature of alternators; DC generators; electric motors for machines and structural parts thereof, other than for land vehicles; dynamos