Alternators; Dynamos; Alternating current servo motors; Boat engines; Boat motors; Current generators; Direct current motors; Door openers, electric; Engines and motors for model vehicles, aircraft and boats; Generators of electricity; Motors and engines, except for land vehicles; Numerically controlled machines and machine tools used for machining parts; Pneumatic controls for machines, motors and engines; Speed governors for machines, engines and motors; Starters for motors and engines