7 [ Machine coupling and transmission components except for land vehicles; agricultural implements other than hand-operated, namely, agricultural elevators, seed planting machines, balers, harvestors, reapers, seed drills, tilling machines, windrowers, harrows, plows and forks; agricultural machines, namely, agricultural elevators, seed planting machines, balers, harvestors, reapers, seed drills, tilling machines, windrowers, harrows, and plows; air condensers; air suction machines; anti-friction pads for machines; ] anti-pollution devices for motors and engines; [ ball-bearings for use in machines, namely, agricultural elevators, seed planting machines, balers, harvestors, reapers, seed drills, tilling machines, windrowers, harrows, and plows; bearing brackets for machines; bearings parts of machines; belts for conveyors; bending machines; blade holders being parts of machines; blades being parts of machines; blowing machines for the compression, exhaustion and transport of gases; boiler tubes being parts of machines; bottle filling machines; brake linings other than for vehicles; electrically-operated brushes being parts of machines; capstans; card clothing being parts of carding machines; carding machines; carriage aprons being parts of machines; cartridges being parts of filtering machines; ] catalytic converters; [ centrifugal pumps; chisels being parts of machines; compressed air engines except for land vehicles; compressed air machines; compressed air pumps; hydraulic and pneumatic control mechanisms for machines, engines or motors; catalytic converters for steelworks; conveyors being machines; machine couplings other than for land vehicles; crankcases for machines, motors and engines; die-stamping machines; drill chucks being parts of machines; drilling heads being parts of machines; dust exhausting installations for cleaning purposes; ejectors being machines; electric arc cutting apparatus; electrical machines for sealing plastics packaging; embossing machines; ] exhaust manifold for engines; [ expansion tanks being parts of machines; fans for motors and engines; feeders being parts of machines; filter presses; filters for cleaning cooling air, for engines; filters being parts of machines or engines; concrete finishing machines; flues for engine boilers; freewheels other than for land vehicles; fuel conversion machines for internal combustion engines; fuel economizers as parts of motors and engines; grease boxes being parts of machines; grease rings being parts of machines; guides being parts of machines; handling machines for loading and unloading; hangers being parts of machines; heat exchangers being parts of machines; holding devices for machine tools; hydraulic controls for machines, motors and engines; hydraulic door openers and closers parts of machines; injectors for engines; machine parts, namely, sealing joints parts of engines; machine parts, namely, journal boxes; knives being parts of machines; machine parts, namely, lifting operating apparatus; power looms; lubricating pumps; machines, namely, boiler scale collectors; machines, namely, fly-wheels; machine wheels; machines for processing plastics; machines, namely, mud catchers and collectors; ] mufflers for motors and engines [ ; piston rings; pistons being parts of machines or engines; plunger pistons; pneumatic controls for machines, motors and engines; pneumatic transporters; pneumatic tube conveyors; presses being machines for industrial purposes; pressure reducers being parts of machines; pressure regulators being parts of machines; propulsion mechanisms other than for land vehicles, namely, engines and motors; pulleys being parts of machines; pump diaphragms; pumps parts of machines, engines or motors; punches being parts of punching machines; punching machines; cooling radiators for motors and engines; reduction gears other than for land vehicles; reels, mechanical, for flexible hoses; reels being parts of machines; regulators being parts of machines; industrial robots; scissors, electric; self-oiling bearings being machine parts; self-regulating fuel pumps for land vehicles; sheaf-binding machines; dust sifting machines; slide rests being parts of machines; speed governors for machines, engines and motors; springs being parts of machines; stuffing boxes being parts of machines; suction machines for industrial purposes; swaging machines; tables being parts of machines; taps being parts of machines, engines or motors; torque converters other than for land vehicles; transmissions for machines; gear transmissions, other than for land vehicles; trimming machines; vacuum cleaner bags; vacuum cleaner hoses; vacuum pumps being machines; valves, check valves and pressure valves being parts of machines; laundry washing machines; water heaters being parts of machines; welding apparatus, gas-operated; welding machines, electric; wine presses; and wringing machines for laundry ]