7 Motors other than for land vehicles; engines not for land vehicles; Machine coupling and transmission components, except for land vehicles, and parts therefor; agricultural machines and implements other than hand-operated, namely, incorporators, seed drills, hay balers, coulters, combine harvesters; incubators for eggs; automatic vending machines; compressors, namely, gas compressors, electric compressors, compressors for refrigerators, air compressors; Valves being parts of machines; Pumps, namely, electric pumps, hydraulic pumps, pumps for machines, compressed air pumps for land vehicles, boats, ships and aeroplanes, water pumps for use in swimming pools, thermostatic control valves for machines, motors for aeroplanes, boats, ships; pumps for land vehicles, boats, ships, and aeroplanes, namely, oil pumps, fuel pumps, and water pumps; motors for boats, ships and aeroplanes; clutches other than for land vehicles; gear boxes other than for land vehicles, namely, for boats, ships and aeroplanes; torque converters not for land vehicles, namely, for boats, ships and aeroplanes