Drilldown: Patents

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Patents > Applicant firm: None & Grant date: 1880 - 1889 & Number of claims: 8-40

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LTA (20) · navigation (14) · propeller (12) · propulsion (11) · frame (10) · balloon (7) · car (7) · rudder (6) · flapping (4) · cargo (4) · marine (3) · landing (3) · safety (3) · passenger (3) · ornithopter (3)
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