Drilldown: Patents

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Patents > Year granted: 1900 - 1909 & Office : CH or LU or NL or NO

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LTA (9) · None (7) · propulsion (7) · propellers (7) · propeller (7) · design (5) · airplane (5) · navigation (5) · flapping (4) · Wings (4) · balloon (3) · whole (3) · subsystem (3) · frame (3)
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Showing below up to 39 results in range #1 to #39.

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