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Priority claimed from DE2752783Aexternal-prioritypatent/DE2752783C2/de
Priority to AT288078ApriorityCriticalpatent/AT375797B/de
Application filed by Siemens AgfiledCriticalSiemens Ag
Priority to AT288081Aprioritypatent/ATA288081A/de
Publication of ATA288081ApublicationCriticalpatent/ATA288081A/de