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Patents > Inventor country : BE or RO & Grant date: 1912

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airplane (12) · wings (8) · stability (7) · construction (7) · design (6) · frame (5) · propellers (4) · Propulsion (3) · equilibrium (2) · folding (2) · monoplane (2) · assembly (2) · lift (2) · sustentation (2) · fuselage (2)
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