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Priority claimed from DE19813102868external-prioritypatent/DE3102868C2/de
Priority claimed from DE19813117614external-prioritypatent/DE3117614C2/de
Application filed by Josef LottnerfiledCriticalJosef Lottner
Priority claimed from EP81109365Aexternal-prioritypatent/EP0057269B1/de
Application grantedgrantedCritical
Publication of ATE12341T1publicationCriticalpatent/ATE12341T1/de