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Patents > IPCs : IPC B64C23/00 or IPC B64C3/18 & Number of figures: 3

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Airplane (20) · Propulsion (11) · hybrid (10) · construction (9) · None (8) · Ascension (8) · Design (8) · Propellers (6) · navigation (6) · Helicopter (6) · frame (6) · Lift (5) · control (5) · wings (4) · landing (3) · Steering (3) · LTA (3) · Sustentation (3)
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