7 Motors other than for land vehicles; motors for boats; generating sets in the nature of a combination generator and engine, not for land vehicles; electricity generators; turbines, other than for land vehicles; parts for turbines, other than for land vehicles, namely, reducers, inverters and propeller brakes; parts and components for the aforesaid goods; parts and components for land vehicle engines for main battle tanks and screw propellers for boats, namely, alternators, carburetors, starters, silencers, distributors