Drilldown: Patents

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Patents > Office : CH or ES or LU & Filing date: 1890 - 1899 & CPCs: None

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LTA (16) · propulsion (10) · balloon (9) · frame (9) · Design (7) · navigation (5) · propeller (4) · compartments (2) · gas (2) · rigid (2) · dirigible (2) · car (2) · airplane (2) · whole (2)
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Showing below up to 28 results in range #1 to #28.

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