Drilldown: Patents

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Patents > Year granted: 1890 - 1899 & Applicant person: None & Number of diagram pages: 2-5

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propulsion (21) · LTA (19) · frame (15) · balloon (11) · navigation (10) · flapping (9) · propeller (8) · car (7) · takeoff (6) · rudder (5) · wheels (4) · landing (4) · marine (4) · stability (4) · design (4) · electricity (3) · parachute (3) · hybrid (3) · safety (3)
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