Motors, other than for land vehicles; aircraft engines and their component parts; non-electric transmission couplings for machines; transmission components; aeronautical engines; filters for cleaning cooling air, for engines; sparking plugs for internal combustion engines; ignition devices for internal combustion engines; ignition magnetos for engines; power transmission shafts for machines; airplane engines; grease rings being parts of machines, namely, self-lubricating mechanical friction parts; piston segments, namely, piston rings, connecting rods for motors and engines; ball-bearings for use in aircraft engines; stuffing boxes being parts of machines, namely, assemblies used in steam engines to prevent the leakage of steam; control cables for machines, engines or motors; drive chains other than for land vehicles, drive chains for machines; transmission chains other than for land vehicles; pneumatic controls for engines; fuel conversion apparatus for internal combustion engines; torque converters other than for land vehicles; belts for machines; fan belts for motors and engines; cylinder heads for engines; cylinders for motors and engines; starters for motors and engines; heat exchangers; exhausts for motors and engines; fuel economisers for motors and engines; ejectors being parts of machines; clutches other than for land vehicles; gears for machines; blowers for motors and engines for compressing and sucking gases; electric generators; lubricating pumps; pneumatic air preparation equipment, lubricators; emergency electric power generators; hydraulic controls for machines, motors and engines; hydraulic engines and motors for aircraft and aeronautical equipment; hydraulic turbines; joints being machine parts; universal joints not for land vehicles, namely, universal joints for use as machine parts; anti-pollution devices for motors and engines; injectors for engines; pistons for engines; speed governors for machines, engines and motors; drive motors other than for land vehicles; anti-friction bearings for machines; bearing brackets for machines; bearings for transmission shafts, being parts of machines; pumps as parts of machines, engines or motors; centrifugal pumps; pressure reducers; pressure regulators being machine parts; pressure valves being machine parts; cooling radiators for motors and engines; jet engines other than for land vehicles; regulators being parts of machines; taps being parts of machines, engines, or motors; roller bearings for machines; bellows; valves being parts of machines; stators being parts of machines; superheaters, namely, machine parts used to convert wet steam into dry steam for power generation purposes; superchargers being parts for machines; heat exchangers being parts of machines; transmissions, other than for land vehicles, for machines; turbines other than for land vehicles; turbocompressors for machines; fans for motors and engines; gear boxes other than for land vehicles

Vehicles, namely, airplanes, aircraft, and helicopters; aerial conveyors, namely, airplanes, aircraft, and helicopters; air cushion vehicles; aircraft; air balloons, namely, vehicular balloons; amphibious airplanes; aeroplanes; dirigible balloons; hoods for vehicle engines; safety belts for vehicle seats for airplanes and helicopters; brake linings for vehicles, namely, airplanes and helicopters; security harness, namely, safety belts and harnesses for vehicle seats for airplanes and helicopters; screw-propellers; hydraulic circuits for vehicles; seaplanes; hydroplanes; engines for land vehicles; caps, namely, gas caps for airplanes and helicopters; petrol gas tanks; brake shoes for airplanes and helicopters; vehicle seats; ejector seats for aircraft

Repair, maintenance, and modification of aircraft engines; repair and maintenance of vehicles; aircraft maintenance and repair; building construction information; information on aircraft engine modification ; building construction supervision; supervising in the nature of directing aircraft engine modification work; repair information for vehicles and aircraft engines; modification of aircraft and aircraft engines; factory construction