Drilldown: Patents

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Patents > Year filed: 1870 - 1879 & First filing: No

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None (3) · Pierre-Nicolas-Victor Lahérard (3) · Anacharsis Menier (2) · Joseph Simmons (2) · Georges-Marie Cave (2)
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Propulsion (15) · LTA (14) · balloon (12) · navigation (10) · propeller (6) · frame (5) · propellers (4) · aerostat (4) · hydrogen (4) · airplane (4) · flapping (4) · ascension (4) · subsystem (3) · None (3)
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Showing below up to 47 results in range #1 to #47.

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