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Patents > Inventor country : Holland or RO

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airplane (23) · design (17) · wings (14) · Construction (14) · propellers (14) · aerodynamics (10) · frame (10) · None (8) · fuselage (7) · stability (6) · control (6) · sustentation (5) · landing (5) · steering (4)
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Showing below up to 55 results in range #1 to #55.

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