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Priority claimed from DE2335170Aexternal-prioritypatent/DE2335170C2/de
Application filed by Hoechst AgfiledCriticalHoechst Ag
Priority to AT904574ApriorityCriticalpatent/AT333301B/de
Publication of ATA904574ApublicationCriticalpatent/ATA904574A/de
Application grantedgrantedCritical
Publication of AT333301BpublicationCriticalpatent/AT333301B/de