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Deflected slipstream vertical lift airplane structure

Aeronautics and astronautics – Aircraft – heavier-than-air – Airplane and fluid sustained
Patent

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Deflector blade of variable camber

Aeronautics and astronautics – Aircraft – heavier-than-air – Airplane and fluid sustained
Patent

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Directional control of engine exhaust thrust vector in a STOL-ty

Aeronautics and astronautics – Aircraft – heavier-than-air – Airplane and fluid sustained
Patent

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Disc-shaped submersible aircraft

Aeronautics and astronautics – Aircraft – heavier-than-air – Airplane and fluid sustained
Patent

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Discus-shaped aerodyne vehicle for extremely high velocities

Aeronautics and astronautics – Aircraft – heavier-than-air – Airplane and fluid sustained
Patent

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Dolphin cascade vane

Aeronautics and astronautics – Aircraft – heavier-than-air – Airplane and fluid sustained
Reexamination Certificate

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Ducted fan vehicles particularly useful as VTOL aircraft

Aeronautics and astronautics – Aircraft – heavier-than-air – Airplane and fluid sustained
Reexamination Certificate

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Ducted fan vehicles particularly useful as VTOL aircraft

Aeronautics and astronautics – Aircraft – heavier-than-air – Airplane and fluid sustained
Reexamination Certificate

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Ducted fan VTOL vehicles

Aeronautics and astronautics – Aircraft – heavier-than-air – Airplane and fluid sustained
Reexamination Certificate

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Ducted propeller aircraft (V/STOL)

Aeronautics and astronautics – Aircraft – heavier-than-air – Airplane and fluid sustained
Patent

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