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Patents > Year filed: 1909 & Office : DE or FR & Applicant firm : Société anonyme Astra AB or None & CPCs: CPC B64C39/00 & Family year: 1900 - 1999 & First filing: No & Citations from after 1930: None

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None (19) · Airplane (17) · Design (13) · Propellers (8) · frame (7) · Lift (6) · control (5) · Stability (5) · sustentation (3) · wings (3) · Construction (3) · Rudder (2) · airfoil (2) · Monoplane (2) · Steering (2) · Aerodynamics (2) · propulsion (2) · Whole (2) · Chassis (2)
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