Drilldown: Patents

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Patents > Filing date: 1901 & Granted: Yes & First filing: No

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LTA (8) · propulsion (6) · kite (5) · stability (4) · propeller (4) · frame (4) · wings (3) · Design (3) · propellers (3) · navigation (3) · helicopter (3) · flapping (3) · Airship (3) · car (2) · Whole (2) · rudder (2) · Airplane (2) · ornithopter (2) · lift (2)
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