Drilldown: Patents

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Patents > Year filed: 1890 - 1899 & National tech categories: GB 4 propel & steer & Number of figures: 3-8

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propulsion (8) · navigation (4) · heavier-than-air (4) · rudder (3) · jet (3) · airplane (2) · glider (2) · takeoff (2) · steam (2) · stability (2) · LTA (2) · flapping (2) · design (2) · car (2) · wings (2)
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Showing below up to 13 results in range #1 to #13.

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