Drilldown: Patents

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Patents > Inventor country : BE or HU or NL & Number of claims: 4

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airplane (18) · Propellers (11) · propulsion (9) · design (9) · Subsystem (8) · aerodynamics (7) · stability (6) · Wings (5) · whole (5) · lift (5) · Control (4) · navigation (4) · LTA (4) · automatic stability (3) · steering (3) · Helicopter (3)
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