Drilldown: Patents

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Patents > Inventor country : NL or RU & Number of figures: 4-5

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airplane (9) · HTA (4) · takeoff (4) · LTA (4) · wings (3) · aerodynamics (3) · propeller (3) · design (3) · launching (3) · wheels (2) · Steering (2) · Stability (2) · propellers (2) · lift (2) · landing (2) · None (2) · frame (2) · airfoil (2) · control (2)
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