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Priority claimed from DE2346787Aexternal-prioritypatent/DE2346787C3/de
Application filed by Hoechst AgfiledCriticalHoechst Ag
Priority to AT587676ApriorityCriticalpatent/AT340570B/de
Publication of ATA587676ApublicationCriticalpatent/ATA587676A/de
Application grantedgrantedCritical
Publication of AT340570BpublicationCriticalpatent/AT340570B/de