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Patents > Inventors : Alfred E. Wunderlich or Hugh Oswald Short or Wilhelm van de Voorde

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propellers (50) · airplane (47) · LTA (41) · hybrid (38) · None (11) · rarefaction (10) · propulsion (9) · sustentation (8) · ascension (7) · helicopter (4) · construction (3) · navigation (3) · rudder (3) · design (3) · frame (3) · aerodynamics (3) · valves (3) · airship (3) · airfoil (3) · wings (3)
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