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Patents > CPCs: CPC B64C39/08 & First filing: Yes & Number of diagram pages: 2-3

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Airplane (11) · None (8) · frame (5) · rudder (4) · propeller (4) · wheels (3) · airfoil (3) · construction (3) · Control (3) · propulsion (3) · multiplane (2) · takeoff (2) · structure (2) · stability (2) · safety (2) · Aerodynamics (2) · navigation (2) · biplane (2) · wings (2) · Design (2)
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