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Priority claimed from DE2031729Aexternal-prioritypatent/DE2031729C3/de
Application filed by Siemens AgfiledCriticalSiemens Ag
Priority to AT1078773ApriorityCriticalpatent/AT341032B/de
Publication of ATA1078773ApublicationCriticalpatent/ATA1078773A/de
Application grantedgrantedCritical
Publication of AT341032BpublicationCriticalpatent/AT341032B/de