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Patents > National tech categories: FR 6.4 & Citations from after 1930: None & Number of figures: 13

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airplane (15) · stability (8) · design (6) · wings (5) · frame (4) · propulsion (4) · propellers (4) · navigation (4) · sustentation (3) · parachutes (3) · LTA (3) · aerodynamics (3) · construction (3) · equilibrium (3) · chassis (2) · control (2) · flapping (2) · lift (2) · steering (2) · texture (2)
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Showing below up to 23 results in range #1 to #23.

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