7 Reduction gears, other than for land vehicles; gearboxes and their parts, other than for land vehicles, in particular planetary gear transmissions, bevel and worm gear reduction units, eccentric gearboxes, cam shaft gearbox, hollow shaft gearboxes; gear motors other than for land vehicles; gear units, other than for land vehicles; electric motors, and their parts, not for land vehicles; electric driving motors for machines; couplings, other than for land vehicles; control mechanisms for machines, engines or motors; motors, other than for land vehicles; linear motors; linear and rotary actuators; rotary to linear actuators; gear wheels for machines