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Priority claimed from DE3012152Aexternal-prioritypatent/DE3012152C2/de
Priority claimed from DE3040537Aexternal-prioritypatent/DE3040537C2/de
Application filed by Siemens AktiengesellschaftfiledCriticalSiemens Aktiengesellschaft
Priority claimed from EP19810102070external-prioritypatent/EP0037021B1/de
Application grantedgrantedCritical
Publication of ATE7759T1publicationCriticalpatent/ATE7759T1/de