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Patents > Inventor country : FR or GB & Number of text pages: 4 & Number of claims: None

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propulsion (7) · airplane (5) · navigation (4) · lift (4) · landing (3) · design (3) · subsystem (3) · ascension (3) · stability (3) · wheels (2) · sustentation (2) · LTA (2) · aerodynamics (2) · None (2) · airfoil (2) · wings (2)
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