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Priority claimed from SE8000451Aexternal-prioritypatent/SE439002B/en
Application filed by Spanset Inter AgfiledCriticalSpanset Inter Ag
Priority claimed from EP81100420Aexternal-prioritypatent/EP0032749B1/en
Application grantedgrantedCritical
Publication of ATE4693T1publicationCriticalpatent/ATE4693T1/en