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Patents > Filing date: February 1913 & Family year: 1913 & Number of diagram pages: 1-2

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stability (8) · None (6) · airplane (6) · frame (5) · design (4) · aerodynamics (4) · propulsion (3) · hybrid (3) · military (3) · Control (3) · metal (2) · projectile (2) · Piloting (2) · Seating (2) · takeoff (2) · wings (2) · landing (2) · lift (2)
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