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Patents > Granted: Yes & Patent agent: Armengaud jeune & IPCs : IPC B64C11/00 or IPC B64C39/00

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Airplane (17) · propellers (12) · Propulsion (12) · design (11) · Aerodynamics (8) · wings (6) · Lift (5) · stability (4) · control (4) · chassis (4) · aileron (4) · Sustentation (4) · biplane (3)
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Showing below up to 36 results in range #1 to #36.

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