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Patents > CPCs: CPC B64C23/005 & Number of text pages: 3-4 & Number of figures: 3-4

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Airplane (15) · Propulsion (13) · None (10) · hybrid (9) · helicopter (7) · Navigation (5) · Lift (5) · landing (5) · ascension (5) · wings (4) · propellers (3) · safety (3) · descent (3) · design (3) · parachutes (3) · frame (3) · construction (3) · propeller (3) · sustentation (3) · aerodynamics (3)
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Showing below up to 37 results in range #1 to #37.

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