72221 ⎘
Aircraft not otherwise provided for with wings, paddle wheels, bladed wheels, moving or rotating in relation to the fuselage about a longitudinal axis
Aircraft having VTOL, translational and traverse flight
#2Aircraft with ducted fan and movable louvers over the ducted fan
#3Dual tiltwing aircraft having a quadrilateral linkage
#4Combination flight and ground apparatus for a vehicle
#5Airplane with configuration changing in flight
#6Dual tiltwing aircraft having a quadrilateral linkage
#7Flight vehicle wing positioning system
#8Tilting ducted fan aircraft generating a pitch control moment
#9Rotorcraft variable thrust cross-flow fan systems
#10Helicopter with cycloidal rotor system
#11Aircraft that can fly horizontally and vertically
#12Rotary wing aircraft
#13Rotary wing aircraft
#14Power transmission device
#15Aircraft