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Patents > Inventor country: DE & IPCs : IPC B64C27/57 or IPC B64C39/00 & Number of text pages: 1-2

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Airplane (13) · propulsion (8) · Design (8) · Propellers (5) · Frame (5) · None (4) · Whole (4) · helicopter (4) · Lift (3) · Tragfläche (3) · subsystem (3) · rudder (3) · propeller (3) · monoplane (3) · wings (3) · hybrid (3) · glider (2) · biplane (2) · Control (2) · Steering (2)
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