Drilldown: Patents

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Patents > Year filed: 1890 - 1899 & Related to aircraft: 1 & IPCs : IPC B64C39/00 or None & First filing: None & Number of diagram pages: 1

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LTA (18) · balloon (11) · propulsion (9) · navigation (8) · propeller (6) · frame (6) · design (5) · jet (4) · gas (4) · safety (4) · compartments (4) · parachute (3) · ascension (3) · electricity (3) · car (3) · captive (3)
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