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Priority claimed from DE19782823080external-prioritypatent/DE2823080C2/en
Priority claimed from DE19792917061external-prioritypatent/DE2917061C2/en
Application filed by Emil DierfiledCriticalEmil Dier
Priority claimed from EP79101526Aexternal-prioritypatent/EP0005774B1/en
Application grantedgrantedCritical
Publication of ATE9T1publicationCriticalpatent/ATE9T1/en