Drilldown: Patents

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Patents > National tech categories : GB 4 propel & steer or USPC 244/22 & Number of claims: 7-60

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flapping (13) · frame (11) · ornithopter (9) · propulsion (8) · navigation (8) · propeller (6) · rudder (5) · None (4) · stability (4) · marine (4) · airplane (4) · airfoil (3) · takeoff (3) · LTA (3) · landing (3) · hybrid (3) · design (3)
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