System for Indicating Fuel-Efficient Aircraft Altitude
Propulsion Apparatus and Method Using Boil-off Gas from a Cryogenic Liquid
Propulsion and stabilization system for magnetically levitated vehicles
Apparatus and Method for Producing an Artificial Gravitational Field
Vehicle Presence, Speed and Length Detecting System and Roadway Installed Detector Therefor
Polarization Insensitive Current and Magnetic Field Optic Sensor
Communication with Reentry Vehicle through Modulated Plasma
Method and Apparatus for Use in Guiding Magnetically Levitated Vehicles