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Priority claimed from DE2423390Aexternal-prioritypatent/DE2423390A1/de
Application filed by Hoechst AgfiledCriticalHoechst Ag
Priority to AT64078ApriorityCriticalpatent/AT357279B/de
Publication of ATA64078ApublicationCriticalpatent/ATA64078A/de
Application grantedgrantedCritical
Publication of AT357279BpublicationCriticalpatent/AT357279B/de