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Priority claimed from DE2438350Aexternal-prioritypatent/DE2438350C3/de
Application filed by Hoechst AgfiledCriticalHoechst Ag
Priority to AT249180ApriorityCriticalpatent/AT373232B/de
Publication of ATA249180ApublicationCriticalpatent/ATA249180A/de
Application grantedgrantedCritical
Publication of AT373232BpublicationCriticalpatent/AT373232B/de