Non-electric prime movers, not for land vehicles, namely, internal combustion engines and fuel injection devices for internal combustion engines, and their structural parts; engines, other than for land vehicles; engines for power generation, not for land vehicles; engines for agricultural and horticultural purposes, not for land vehicles; motors, other than for land vehicles; lawn mowers; fuel injectors; agricultural machines and agricultural implements, other than hand-operated, namely, combines, harvesters, threshers, tillers, cultipackers, and seed sowers; garden machines and implements, other than hand-operated, namely, garden tilling machine