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Patents > Granted: Yes & IPCs: IPC B64C39/00 & CPCs: CPC B64C39/00 & Family year: 1908

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Airplane (20) · Design (12) · Propellers (10) · None (9) · frame (8) · Propulsion (7) · lift (6) · wings (6) · aerodynamics (5) · stability (5) · Sustentation (4) · Whole (3) · Automatic stability (3)
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Showing below up to 43 results in range #1 to #43.

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