Drilldown: Patents

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Patents > Filing date: 1890 - 1899 & Number of claims: 4-90 & Number of figures: 9-30

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navigation (18) · LTA (16) · frame (15) · propulsion (12) · balloon (9) · rudder (6) · design (6) · propeller (5) · car (5) · flapping (3) · None (3) · cargo (3) · rigid (3) · airfoil (3) · stability (3) · compartments (3)
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