Drilldown: Patents

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Patents > IPCs : IPC B64B1/40 or IPC B64C31/00 & Family year: 1800 - 1899

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kite (18) · LTA (9) · frame (7) · balloon (5) · car (5) · stability (4) · navigation (4) · propulsion (3) · parachute (3) · fun (3) · sail (3) · marine (2) · airfoil (2) · rudder (2) · track (2) · flapping (2) · metal (2)
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