Drilldown: Patents

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Patents > Year filed: 1906 & Number of text pages: 2-4 & Number of claims: 6-40

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flapping (10) · navigation (9) · LTA (8) · airplane (7) · propeller (6) · propulsion (5) · stability (5) · ornithopter (5) · frame (4) · hybrid (4) · human-powered (4) · landing (3) · car (3) · airfoil (3) · helicopter (3) · military (3) · rudder (3)
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