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Patents > CPCs : CPC B64C2700/6245 or CPC B64C2700/6274 & Number of claims: 5-30

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Airplane (14) · None (10) · design (7) · propulsion (7) · Propellers (7) · helicopter (7) · Hybrid (7) · Frame (6) · Ascension (5) · propeller (4) · construction (4) · lift (4) · sustentation (4) · wings (3) · navigation (3) · aerodynamics (3) · stability (3)
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