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Patents > Year granted: 1910 & 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 (13) · Design (10) · Frame (9) · propellers (5) · Lift (5) · Construction (4) · Stability (4) · Control (3) · Sustentation (3) · Rudder (3) · airfoil (3) · Propulsion (3) · Whole (3) · Aerodynamics (3) · Landing (3)
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