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Priority claimed from DE2253170Aexternal-prioritypatent/DE2253170C2/de
Application filed by Hoechst AgfiledCriticalHoechst Ag
Priority to AT826076ApriorityCriticalpatent/AT358384B/de
Publication of ATA826076ApublicationCriticalpatent/ATA826076A/de
Application grantedgrantedCritical
Publication of AT358384BpublicationCriticalpatent/AT358384B/de