Drilldown: Patents

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Patents > Office : CH or LU or NL or NO & Filing date: 1890 - 1899

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LTA (14) · propulsion (10) · frame (8) · balloon (8) · navigation (6) · propeller (4) · design (4) · whole (3) · airplane (2) · car (2) · compartments (2) · rigid (2) · gas (2)
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Showing below up to 28 results in range #1 to #28.

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