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Patents > Year granted: 1911 & Inventor country : AT or NL

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Airplane (17) · design (10) · frame (9) · construction (8) · None (7) · whole (7) · Wings (7) · Propellers (6) · lift (5) · stability (5) · propeller (5) · navigation (5) · LTA (4) · sustentation (4) · Subsystem (4) · steering (4) · propulsion (4) · wheels (3) · Tragfläche (3) · Flapping (3)
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