FRONTIER ASTRONAUTICS

Rocket engines not for land vehicles and parts therefor, namely, structural parts therefor; Parts of rocket engines not for land vehicles, namely, propellant pumps, propellant tanks, combustion chambers and combustion engine fuel nozzles, and pressurization systems, consisting of pressure tanks and pressure regulators

automatic attitude control indicators; navigational apparatus for spacecraft and rocket vehicles, for determination of angular position and rotation of spacecraft and rocket vehicles