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Priority claimed from CH420480Aexternal-prioritypatent/CH635968A5/de
Priority claimed from DE19803045971external-prioritypatent/DE3045971A1/de
Application filed by Johann BuserfiledCriticalJohann Buser
Priority claimed from EP19810890092external-prioritypatent/EP0041499B1/de
Application grantedgrantedCritical
Publication of ATE7982T1publicationCriticalpatent/ATE7982T1/de