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Priority claimed from DE19772703453external-prioritypatent/DE2703453A1/de
Application filed by Hoechst AgfiledCriticalHoechst Ag
Publication of ATA790078ApublicationCriticalpatent/ATA790078A/de
Application grantedgrantedCritical
Publication of AT353774BpublicationCriticalpatent/AT353774B/de