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Patents > Office : AT or BE & Publication date: 1913

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Airplane (14) · subsystem (8) · frame (8) · Aerodynamics (8) · wings (8) · stability (7) · Design (7) · propellers (7) · construction (6) · Parachutes (5) · control (4)
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Showing below up to 33 results in range #1 to #33.

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