Drilldown: Patents

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Patents > Application number: None & Grant date: 1800 - 1899 & Assigned to : Sperry Gyroscope Company or Western Electric Company or None & National tech categories: GB 4 propel & steer

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navigation (13) · propulsion (13) · propeller (8) · rudder (7) · frame (7) · LTA (5) · wings (4) · electricity (4) · takeoff (4) · flapping (4) · jet (4) · design (3) · airplane (3) · heavier-than-air (3)
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