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Patents > IPCs : IPC B62D1/06 or IPC B64C33/02 & Number of figures: 3-4

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Caspar Dietrich Otto Vollmann (2) · Franz Blicharski (2) · Max Muehter (2)
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Flapping (13) · propulsion (11) · wings (8) · ornithopter (6) · frame (6) · Design (5) · None (5) · Airplane (5) · LTA (4) · wing (4) · whole (4) · Propellers (4) · aerodynamics (4) · subsystem (3) · Stability (3) · navigation (3) · lift (3) · control (3)
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