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Patents > Office: GB & Inventor country : BE or CH & First filing: No

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airplane (6) · None (5) · wings (5) · design (4) · frame (4) · cables (3) · propulsion (3) · construction (2) · lift (2) · propellers (2) · sustentation (2) · ascension (2) · subsystem (2) · compartments (2) · stability (2)
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