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Priority claimed from DE19803019882external-prioritypatent/DE3019882C2/en
Application filed by Siemens AktiengesellschaftfiledCriticalSiemens Aktiengesellschaft
Priority claimed from EP81102244Aexternal-prioritypatent/EP0037518B1/en
Application grantedgrantedCritical
Publication of ATE6330T1publicationCriticalpatent/ATE6330T1/en