Drilldown: Patents

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Patents > Grant date: 1896 & CPCs : CPC F03D3/00 or None

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LTA (8) · airplane (6) · propulsion (6) · instrument (5) · frame (4) · navigation (4) · balloon (3) · propeller (3) · electricity (2) · hydrogen (2) · helicopter (2) · marine control (2) · electronics (2) · None (2) · rigid (2)
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Showing below up to 33 results in range #1 to #33.

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