Drilldown: Patents

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Patents > Office : FR or MX & Supplementary to patent : Patent BE-1909-214032 or Patent HU-1901-24148 or None & Patent agent: None & Family year: 1910 - 1919 & Number of diagram pages: 2-3

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design (7) · airplane (7) · stability (6) · propulsion (4) · None (3) · propellers (3) · frame (3) · lift (3) · construction (3) · ascension (2) · control (2) · monoplane (2) · automatic stability (2) · aerodynamics (2) · landing (2) · parachute (2) · heavier-than-air (2)
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