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Priority claimed from DE2534358Aexternal-prioritypatent/DE2534358C3/de
Priority claimed from DE2556723Aexternal-prioritypatent/DE2556723C3/de
Application filed by Hoechst AgfiledCriticalHoechst Ag
Publication of FI762188A7publicationCriticalpatent/FI762188A7/fi
Publication of FI65731BpublicationCriticalpatent/FI65731B/fi
Application grantedgrantedCritical
Publication of FI65731CpublicationCriticalpatent/FI65731C/fi