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Patents > Inventor country: BE & Filing date: 1912

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airplane (15) · stability (8) · wings (6) · design (6) · hybrid (4) · sustentation (4) · construction (4) · frame (4) · equilibrium (4) · lift (3) · propellers (3) · propulsion (3)
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Showing below up to 28 results in range #1 to #28.

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