Drilldown: Patents

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Patents > Patent agent : 1 or Haseltine, Lake & Co. or None & National tech categories: USPC 244/80 & Citations from after 1930: None

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None (15) · stability (14) · control (7) · airplane (6) · navigation (6) · steering (5) · automatic stability (5) · pendulum (3) · frame (2) · subsystem (2) · rudder (2) · lift (2) · wings (2) · equilibrium (2) · design (2)
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