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Priority claimed from DE3618823Aexternal-prioritypatent/DE3618823C2/de
Application filed by Heinrich SchaiperfiledCriticalHeinrich Schaiper
Priority claimed from PCT/EP1987/000280external-prioritypatent/WO1987007484A1/de
Application grantedgrantedCritical
Publication of ATE61209T1publicationCriticalpatent/ATE61209T1/de