Drilldown: Patents

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Patents > Year granted: 1911 & Supplementary to patent: None & Number of claims: 17-60

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Airplane (10) · None (6) · frame (6) · Stability (5) · propeller (3) · wheels (3) · safety (3) · airfoil (3) · Design (3) · landing (3) · heavier-than-air (2) · rudder (2) · parachute (2) · propellers (2) · propulsion (2) · takeoff (2) · flapping (2) · wings (2) · aeroplane (2) · car (2)
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