Carburetors; Air filters for mechanical purposes; Bits for power drills; Chain saws; Clutches, other than for land vehicles; Crank shafts for engines; Cylinders for machines; Filters for motors and engines; Freewheels, other than for land vehicles; Gasoline engines not for land vehicles; Ignitions parts for internal combustion engines, namely, points; Lawn mowers; Machine flywheels; Pistons for cylinders; Silencers for motors and engines; Sparking plugs for internal combustion engines