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Patents > IPCs : IPC B64C25/36 or IPC B64C3/54 & Number of text pages: 1-2

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airplane (25) · Wings (14) · Design (14) · Construction (8) · aerodynamics (8) · Lift (8) · frame (8) · control (7) · sustentation (6) · stability (6) · monoplane (5) · None (5) · Propulsion (4) · Rudder (4) · wing warping (4) · Steering (4) · Flapping (3) · subsystem (3)
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Showing below up to 35 results in range #1 to #35.

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