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Priority claimed from DE3935722Aexternal-prioritypatent/DE3935722A1/de
Priority claimed from DE4009138Aexternal-prioritypatent/DE4009138A1/de
Application filed by Siemens AgfiledCriticalSiemens Ag
Application grantedgrantedCritical
Publication of ATE100632T1publicationCriticalpatent/ATE100632T1/de