Drilldown: Patents

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Patents > Filing date: 1880 - 1889 & Number of diagram pages: 3-5

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LTA (14) · propulsion (8) · navigation (8) · balloon (6) · frame (6) · propeller (5) · rudder (4) · marine (4) · Windmill (3) · flapping (3) · car (3) · stability (2) · ornithopter (2) · military (2) · None (2) · electricity (2) · electric (2) · airfoil (2) · control (2)
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None (8) · DE 77 (4) · USPC 244/96 (3) · USPC 114/21.1 (2) · USPC 244/64 (2) · USPC 244/26 (2) · USPC 244/30 (2)
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