Drilldown: Patents

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Patents > Year granted: 1900 - 1909 & Supplementary to patent: None & IPCs : IPC B64B1/62 or IPC B64C3/56

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LTA (11) · navigation (4) · design (3) · airplane (3) · propellers (3) · balloon (3) · frame (3) · construction (2) · propulsion (2) · Rudder (2) · wings (2) · ballonet (2) · balloons (2) · ascension (2) · lift (2)
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