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Priority claimed from SE8006604Aexternal-prioritypatent/SE431514B/sv
Priority claimed from SE8006603Aexternal-prioritypatent/SE425293B/sv
Application filed by Flaekt AktiebolagfiledCriticalFlaekt Aktiebolag
Priority claimed from EP81107351Aexternal-prioritypatent/EP0048449B1/de
Application grantedgrantedCritical
Publication of ATE11229T1publicationCriticalpatent/ATE11229T1/de