Drilldown: Patents

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Patents > Year granted: 1880 - 1889 & Patent agent: None & Number of claims: 4-20

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LTA (15) · navigation (11) · propulsion (8) · balloon (6) · control (6) · frame (5) · propeller (5) · car (4) · rudder (4) · landing (3) · airship (3) · marine (2) · steering (2) · parachute (2) · ornithopter (2) · None (2)
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