Electric motors, not for land vehicles; [ hydraulic controls for machines, motors and engines; motors other than for land vehicles; pneumatic controls for machines, motors and engines; ] [ engines not for land vehicles; ] motor and engines except for land vehicles; gear boxes other than for land vehicles; [ machine coupling and transmission components, except for land vehicles, and parts therefor; ] power transmissions and gearing for machines; [ transmission chains, other than for land vehic...