Drilldown: Patents

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Patents > Office: BE & Filing date: 1907 & Assigned to: None & Family year: 1900 - 1909

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Airplane (26) · LTA (8) · design (7) · Rarefaction (5) · sustentation (5) · propellers (5) · wings (4) · Ascension (4) · Hybrid (4) · propulsion (4) · HTA (3) · ballonet (3)
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