Drilldown: Patents

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Patents > Year granted: 1890 - 1899 & Number of figures: 13-60

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propulsion (7) · navigation (7) · LTA (5) · frame (4) · piloting (3) · propeller (3) · passenger (2) · stability (2) · cargo (2) · safety (2) · rudder (2) · design (2) · electricity (2) · airfoil (2) · fabric (2) · propellers (2) · construction (2)
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