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Patents > IPCs : IPC B64C31/06 or IPC B64C39/00 & CPCs : CPC B64C39/003 or CPC B64C39/005 & Number of diagram pages: 2-3

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Propulsion (12) · navigation (9) · airplane (9) · Design (7) · ascension (5) · frame (5) · construction (4) · stability (4) · sustentation (4) · propeller (3) · propellers (3) · heavier-than-air (3) · LTA (3) · Lift (3) · hybrid (3) · helicopter (3) · None (3) · Wings (3) · aerodynamics (3)
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Showing below up to 34 results in range #1 to #34.

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