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Patents > Inventor country: DE & IPCs: IPC B64C39/00

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airplane (13) · propulsion (7) · design (7) · None (6) · Frame (6) · wings (6) · Control (5) · lift (5) · Propellers (5) · aeroplane (4) · Whole (4) · helicopter (4) · propeller (3) · monoplane (3) · rudder (3)
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Showing below up to 43 results in range #1 to #43.

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