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Priority claimed from DE2628997Aexternal-prioritypatent/DE2628997C3/de
Priority claimed from DE2714439Aexternal-prioritypatent/DE2714439C3/de
Priority claimed from DE19772721526external-prioritypatent/DE2721526C3/de
Application filed by Siemens AgfiledCriticalSiemens Ag
Publication of PT66724ApublicationCriticalpatent/PT66724A/de
Publication of PT66724BpublicationCriticalpatent/PT66724B/de
Priority claimed from DE2905471Aexternal-prioritypatent/DE2905471B1/de