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Priority claimed from SE8405181Aexternal-prioritypatent/SE8405181D0/en
Application filed by Vbg Prod AbfiledCriticalVbg Prod Ab
Priority claimed from EP85905246Aexternal-prioritypatent/EP0241455B2/en
Application grantedgrantedCritical
Publication of ATE49162T1publicationCriticalpatent/ATE49162T1/en