Drilldown: Patents

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Patents > Grant date: 1890 - 1899 & Number of claims: 4-7 & Number of diagram pages: 2-4

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LTA (16) · propulsion (16) · frame (13) · navigation (11) · balloon (8) · flapping (6) · car (6) · propeller (6) · human-powered (4) · rudder (4) · design (3) · hybrid (3) · glider (3) · gas (3) · rigid (3) · cargo (3) · airplane (3)
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