Electric and electromagnetic and chemical-electromagnetic hybrid and laser propulsion mechanisms, other than for land vehicles, namely, laser ablation propulsion mechanisms, magnetoplasmadynamic propulsion mechanisms; electric generators, superconducting generators; electric motors other than for land vehicles, superconducting motors other than for land vehicles; dynamos, electromagnetic flux pumps, superconducting dynamos, electric flux pumps; levitated disc bearings, superconducting disc bearings
MachineryApparatus and installations for heating or cooling, namely cryocoolers, electric resistive heaters, heat pipes being component parts of heating or cooling installations, thermal switches being component parts of heating or cooling installations, thermal buses and conduits being component parts of heating or cooling installations, thermal radiators; heating and cooling apparatus for use in spacecraft or aircraft, namely cryocoolers, electric resistive heaters, heat pipes being component parts of heating or cooling installations, thermal switches being component parts of heating or cooling installations, thermal buses and conduits being component parts of heating or cooling installations, thermal radiators; cryocooling apparatus, namely cryocoolers; cryogenic apparatus, namely cryocoolers, heat pipes being component parts of heating or cooling installations, thermal switches being component parts of heating or cooling installations, thermal buses and conduits being component parts of heating or cooling installations; cryostats, other than for laboratory use, namely cryostats for electromagnets, cryostats for electromagnetic detectors
Environmental Control Apparatus