Drilldown: Patents

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Patents > Year granted: 1900 - 1909 & Office : CH or GR & IPCs: None

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LTA (8) · propellers (6) · design (5) · propulsion (5) · propeller (4) · Flapping (4) · Wings (4) · balloon (3) · frame (3) · Airplane (3) · navigation (3) · rudder (2) · car (2) · whole (2) · Hybrid (2)
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Showing below up to 19 results in range #1 to #19.

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