7 Exhaust systems for motor vehicles, namely, engine exhaust systems comprised of pipes, collector and muffler and parts and components therefor; shock absorbers for machines; catalytic converters; exhausts for motors and engines; adapter pipes for automotive exhausts; automotive exhaust pipes; exhaust pipe reducers, namely, exhaust silencers for engines; engine exhaust tips, namely, exhaust pipe spouts, and exhaust pipe nozzles; weights as parts of exhausts, namely, mounting weights adapted for exhaust systems for internal combustion engines; clamps and suspensions as parts of exhausts, namely, mounting brackets, fasteners and hangers adapted for exhaust systems for internal combustion engines; engines not for land vehicles; machine couplings and transmission components, except for land vehicles; agricultural implements not hand-operated, namely, incorporators, hay balers, seed drills, coulters, combines, harvesters, threshers, tillers, windrowers, cultipackers, sowers; machines for the plastics industry and for the automobile industry, namely, extrusion machines for plastic, injection plastic molding machines, machines for plastic working, automotive frame stretching machines, brake flushing machines; spark plugs for engines; parts of engines for all kinds of engines, namely, contact points, electronic fuel injection modules, and oil dipsticks; hydraulic and pneumatic cylinders for engines; pistons for engines; piston rings; air, fuel, and oil filters for machines and engines; radiators for motors and engines; fans for motors and engines; bearings as parts of machines; ball bearings as parts of machines; belts for engines and engine units; v-belts for engines and engine units, namely, power transmission belts for machines; dynamo belts; conveyor belts; brake components and parts for machines, namely, brake linings, brake pads, brake shoes and brake segments; brakes for machines; brake shoes other than for land vehicles; parts of engines not for land vehicles, namely, couplings, piston rings, transmission chains and shafts; relief valves as parts of engines, namely, emission reduction units in the nature of EGR valves and PCV valves; valves being engine parts for introducing fuel-air mixtures into the combustion chambers of internal combustion engines; regulators, namely, fuel and air mixture regulators being parts of internal combustion engines; torque converters other than for land vehicles; clutches other than for land vehicles; Parts of engines and transmissions not for land vehicles, namely, igniting devices for internal combustion engines, engine injectors and starters for engines and engine units; fuel economizers for motors and engines, namely, fuel catalysts; liquefied petroleum gas operating equipment for fuel engines, namely, gas filters for motors and engines, fuel injectors, and fuel and air mixture regulators being parts of internal combustion engines; pumps for machines and engines; carburetors; carburetor supply systems comprised primarily of power valves for carburetors; electromechanical devices providing vehicle window motion, namely, electric motors for vehicle windows; diesel fuel injection apparatus, namely, fuel injectors; glow plugs for Diesel engines; belts and tensioners, namely, distribution belts in the nature of timing belts for industrial motors and for engines for land vehicles, belts for transmission other than for land vehicles, and cooling fan belts for engines of passenger cars and commercial vehicles; water pumps for use in motors and engines; alternators for passenger and commercial land vehicles; starters for engines; dynamos; spare parts for engines for passenger and commercial vehicles, namely, thermostats, pumps, compressors, heads, pistons, piston rings; air-conditioning compressors; machine components, namely, vibration absorbers and dampers, shock absorbers and damper; machines, namely, machines for plastic working, machines for separating target materials from mixtures of materials, metal forming machines, metal working machines; machine molded components, namely, machine couplings and transmission component except for land vehicles; bearings as parts of machines, namely, engine and elastic machine bearings in the nature of hydraulic bearings for sound insulation and vibration insulation made from a mixture of metals and elastomers; machine parts, namely, hoods without a sound-absorbing coating intended for use in the construction of machines; protective machine hoods of the aforementioned type without a sound-absorbing coating intended for use in the construction of machines