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Deployable wing back pack

Aeronautics and astronautics – Aircraft propulsion – Manual
Patent

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Device for the acceleration of bodies, especially a mobile catap

Aeronautics and astronautics – Aircraft propulsion – Launching
Patent

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Double propeller for propelling aircraft

Aeronautics and astronautics – Aircraft propulsion – Screw
Patent

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Dual propeller and engine drive system for aircraft

Aeronautics and astronautics – Aircraft propulsion – Screw
Patent

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Dynamic seal for slotted cylinder

Aeronautics and astronautics – Aircraft propulsion – Launching
Patent

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