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Patents > Application number: None & CPCs : CPC B63H1/26 or CPC B64C2700/6295

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propellers (12) · propulsion (9) · airplane (8) · Propeller (7) · frame (6) · design (5) · rudder (4) · stability (4) · None (3) · Subsystem (3) · biplane (3) · aerodynamics (3) · marine (2) · hydroeaeroplane (2) · airfoil (2) · wheels (2)
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Showing below up to 35 results in range #1 to #35.

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