Drilldown: Patents

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Patents > National tech categories : AT 77d or USPC 244/100R & Number of figures: 8-17

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airplane (11) · frame (8) · stability (6) · wings (6) · propeller (5) · navigation (5) · whole (4) · propulsion (4) · Helicopter (4) · design (4) · subsystem (4) · control (3) · landing (3) · flapping (3) · None (3) · car (3) · wheels (3)
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