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Priority claimed from DE19863641632external-prioritypatent/DE3641632A1/de
Priority claimed from DE19873710493external-prioritypatent/DE3710493A1/de
Application filed by Siemens AgfiledCriticalSiemens Ag
Priority claimed from EP87730161Aexternal-prioritypatent/EP0270484B1/de
Application grantedgrantedCritical
Publication of ATE50840T1publicationCriticalpatent/ATE50840T1/de