PROMETHEUS

Motors and engines other than for land vehicles; engines for air locomotion vehicles; rocket engines not for land vehicles; reusable rocket engines not for land vehicles; space launch vehicle engine; airplane engines; aircraft engines; space vehicle engines; propulsion systems not for land vehicles, comprising combustion chambers, injectors, pumps, propellant tanks, propellant pressurization apparatus, and nozzles; propulsion-system mechanisms in the nature of propellant conditioning, propellant combustion, and thrust generation and modulation apparatus for rocket-based propulsion, none of the foregoing for land vehicles; structural component parts of the foregoing for vehicles, except those for land vehicles; turbines other than for land vehicles; turbo compressors; air nozzles being parts of engines and motors