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Patents > Office : DK or FR & CPCs: CPC B64C3/52

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airplane (27) · wings (17) · lift (11) · wing warping (9) · None (9) · design (8) · navigation (7) · construction (6) · stability (6) · aerodynamics (6) · frame (6) · sustentation (5) · flexibility (4) · control (4) · monoplane (3) · balance (3) · steering (3) · Propulsion (3) · fuselage (3)
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Showing below up to 41 results in range #1 to #41.

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