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Patents > Publication date: 1909 & Number of text pages: 4

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Airplane (14) · Design (10) · frame (9) · stability (8) · Construction (6) · Wings (6) · control (5) · lift (5) · subsystem (5) · sustentation (5) · propulsion (4) · Ascension (4) · Propellers (4) · navigation (4) · None (4) · Aerodynamics (3) · Airship (3) · equilibrium (3) · LTA (3)
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