Drilldown: Patents

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Patents > National tech categories: FR 6.4 & Number of text pages: 7-8 & Number of diagram pages: 2-9

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Airplane (20) · stability (10) · design (6) · Control (6) · wings (5) · frame (5) · propulsion (5) · flapping (4) · Subsystem (4) · Steering (4) · HTA (3) · propeller (3) · propellers (3) · construction (3) · chassis (3) · biplane (3) · automatic stability (3) · sustentation (3) · whole (3) · helicopter (3)
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