Gear boxes and reduction gears, other than for land vehicles; speed gear reducers and overdrives, speed gear boxes, planetary gear-boxes and gear transmissions for machines, other than for land vehicles; gears, other than for land vehicles; supports, namely, transmission supports and mechanical and electronic clutches, other than for land vehicles; couplings for machines, other than for land vehicles; shaft couplings, being parts of machines; hydraulic steering units, being parts of machines; mechanical and hydraulic winches, hoists, pulleys, windlasses and lifting jacks, other than for land vehicles; planetary gear systems, flanges, supports, shafts and brakes, winches, electric motors, power shift and drop boxes, being parts of machines; bell housings, being parts of machines; systems comprising integrate machine parts for loading and unloading machines, robotic arms for loading, loading beams [parts of machines], robotic mechanisms [machines] for lifting, loading and transmission purposes; control mechanisms for aerial work platforms, control mechanisms for agricultural machines for controlling the movement of blades, control mechanisms for industrial robots, control mechanisms for industrial machine presses, folding machines, punching machines and automatic, semi-automatic and gravitational sawing machines.;