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Priority claimed from DE2438350Aexternal-prioritypatent/DE2438350C3/de
Application filed by Hoechst AgfiledCriticalHoechst Ag
Priority to AT249280ApriorityCriticalpatent/AT372941B/de
Publication of ATA249280ApublicationCriticalpatent/ATA249280A/de
Application grantedgrantedCritical
Publication of AT372941BpublicationCriticalpatent/AT372941B/de