drives, namely, drive motors, drive gears, arid drive converters; components of power transmission for machines, namely, gears, variable speed gears; motors not for land vehicles, namely, electro motors and braking motors, gears motors namely, spur wheel, worm gears, variable speed gears, friction gears, contrate worm gears; couplings and devices for power transmission not for land vehicles, namely gears and gear motors; parts of the aforesaid goods for machines, namely ventilators, brakes, n...