Drilldown: Patents

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Patents > Office: DE & Inventor country : FR or NL & Number of figures: 4-6

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frame (9) · whole (5) · propulsion (5) · navigation (5) · airplane (5) · design (5) · wings (4) · LTA (4) · subsystem (3) · stability (3) · marine (3) · construction (3) · None (2) · kite (2) · propeller (2) · lift (2) · car (2)
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