Drilldown: Patents

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Patents > Year granted: 1880 - 1889 & Grant date: 1880 - 1889 & Number of claims: 7-70

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LTA (22) · navigation (16) · propeller (14) · propulsion (11) · frame (10) · balloon (8) · car (8) · rudder (7) · flapping (5) · marine (5) · landing (4) · cargo (4) · passenger (3) · military (3) · hybrid (3) · safety (3) · stability (3) · compartments (3) · sail (3) · airfoil (3)
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