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Patents > Applicant person : Everard Richard Calthrop or Gustav Mees or Roe Tanner

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stability (11) · hybrid (11) · airplane (9) · propellers (9) · design (8) · parachute (8) · gyroscope (8) · None (7) · propeller (7) · parachutes (7) · helicopter (6) · frame (6) · balloons (6) · takeoff (5) · control (5) · construction (5) · nacelle (4) · hydroplane (4)
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Showing below up to 49 results in range #1 to #49.

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