4. Transportation
  5. Aircraft, spacecraft, or fuselage
  6. Vertical takeoff type
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Rigid coaxial rotor heavy lift helicopter

Transportation – Aircraft – spacecraft – or fuselage – Vertical takeoff type
Design Patent

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Rigid coaxial rotor helicopter with auxiliary propulsion...

Transportation – Aircraft – spacecraft – or fuselage – Vertical takeoff type
Design Patent

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Rigid coaxial rotor helicopter with auxiliary propulsion...

Transportation – Aircraft – spacecraft – or fuselage – Vertical takeoff type
Design Patent

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Rigid coaxial rotor helicopter with dual auxiliary propulsion

Transportation – Aircraft – spacecraft – or fuselage – Vertical takeoff type
Design Patent

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Rigid coaxial rotor unmanned helicopter with auxiliary...

Transportation – Aircraft – spacecraft – or fuselage – Vertical takeoff type
Design Patent

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Rotary powered paraplane

Transportation – Aircraft – spacecraft – or fuselage – Vertical takeoff type
Patent

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