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Patents > National tech categories : USPC 244/153R or USPC 244/22 or USPC 244/80 & Cites these patents : Patent AT-1909-47911 or USPC 244/26 or USPC 244/87 or None & Number of figures: 6-8

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ornithopter (10) · frame (10) · airplane (9) · None (6) · flapping (5) · stability (5) · propeller (4) · kite (4) · navigation (3) · hybrid (3) · wings (3) · equilibrium (3)
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