Chang H. HONG Trademarks
TORUS ROTORCRAFT
Rotorcraft, Aircraft, Airplanes, Tilt rotor aircraft, Helicopters, Propeller airplanes, Turbo-prop airplanes
Owned by: Chang H. HONG
Serial Number: 85820680
TORUS ROTOR SYSTEM
a rotor system for rotorcraft comprised of counter-rotating rotor blades for rotorcraft, pitch control linkages for rotorcraft…
Owned by: Chang H. HONG
Serial Number: 85820688
