7 Machines and machine tools for chiseling, compressing, coupling, crushing, degreasing, filing, filtering, and galvanizing, motors and engines except for land vehicles; machine coupling and transmission components except for land vehicles, namely, air pumps, alternators, anti-pollution devices for engines, axles for machines, ball rings for bearings, bearings, ball bearings, bearing brackets, bushing being parts of machines, bearings for transmission shafts, belts for machines, belts for engines, calenders being machines, feeders for carburetors, carburetors, catalytic converters, machine clack valves, compressed air engines, compressed air pumps, compressors, connecting rods for machines or motors except for land vehicles, control cables for machines or motors except for land vehicles, control devices for machines or motors except for land vehicles, hydraulic controls for machines and motors except for land vehicles, pneumatic controls for machines and motors except for land vehicles, hoods being parts of machines, crank shafts, crankcases for machines and motors except for land vehicles, cranks being parts of machines, cylinder heads for engines except for land vehicles, cylinders for machines, cylinders for engines except for land vehicles, hydraulic devices for opening doors, pneumatic devices for opening doors, electric door closers, electric devices for door openers, hydraulic door closers, pneumatic devices for door closers, drilling heads being parts of machines, drilling bits being parts of machines, machine drums, dynamo brushes, dynamo belts, dynamos, ejectors, hydraulic motors, exhaust manifolds for engines except for land vehicles, silencers for engines except for land vehicles, fan belts for engines except for land vehicles, fans for engines except for land vehicles, filters to clean cooling air for engines except for land vehicles, filters being parts of machines or motors except for land vehicles, forge bellows, forge bellows, fuel economizers for engines except for land vehicles, fuel conversion apparatus for internal combustion engines, fuel dispensing pumps for service stations, self-regulating fuel pumps, generators of electricity, glow plugs for Diesel engines, grease rings being parts of machines, grease boxes, heat exchangers being parts of machines, igniting devices for internal combustion engines, igniting magnetos, injectors for engines except for land vehicles, jacks being machines, pneumatic jacks, gaskets being parts of engines, journal boxes, journals, kick starters for motorcycles, grease pumps, lubricating pumps being parts of machines, mufflers for engines, parts of pistons, piston rings, pistons for cylinders, pistons for engines, pistons being parts of machines or motors except for land vehicles, electric machines and apparatus for polishing, power hammers, pressure reducers being parts of machines, pressure regulators being parts of machines, pressure valves being parts of machines, pump diaphragms, pumps being parts of machines or motors except for land vehicles, pumps, rack and pinion jacks, cooling radiators for engines, regulators being parts of machines, roller bearings, needle bearings, shock absorber plungers being parts of machines, spark plugs for internal combustion engines, speed governors for machines and motors except for land vehicles, springs being parts of machines, starters for engines, stators, steam traps, taps being parts of machines or engines except for land vehicles, transmissions for machines, turbochargers, universal joints, valves being parts of machines, winches, motors for winches; electric devices, namely, electric window closers; electric window openers; hydraulic window openers; hydraulic window closers; hydraulic controls for machines; pneumatic window closers; pneumatic window openers