Drilldown: Patents

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Patents > Year granted: 1860 - 1869 & Office: FR & Supplementary to patent: None & Related to aircraft : 1/2 or 1912-01-30 or No or `1 or Other

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propulsion (11) · navigation (10) · balloon (10) · Aerial Navigation* (7) · LTA (6) · Aerostat (4) · hybrid (4) · aerial vessel (3) · marine (2) · dirigible (2) · safety (2) · None (2) · Aerial apparatus (2) · aerial navigation (2)
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Showing below up to 52 results in range #1 to #52.

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