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Patents > Patent agent : Briesen & Steele or Haseltine, Lake & Co. & Number of claims: 6-70

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stability (10) · LTA (5) · airplane (5) · gyroscope (5) · frame (5) · propeller (5) · None (4) · hybrid (4) · navigation (4) · electricity (3) · control (3) · propulsion (3) · automatic stability (3) · airfoil (3)
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