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Priority claimed from DE19702052568external-prioritypatent/DE2052568A1/de
Application filed by Hoechst AgfiledCriticalHoechst Ag
Priority to AT404974ApriorityCriticalpatent/AT335043B/de
Publication of ATA404974ApublicationCriticalpatent/ATA404974A/de
Application grantedgrantedCritical
Publication of AT335043BpublicationCriticalpatent/AT335043B/de