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Priority claimed from DE19772703077external-prioritypatent/DE2703077A1/de
Application filed by Hoechst AgfiledCriticalHoechst Ag
Publication of ATA790178ApublicationCriticalpatent/ATA790178A/de
Application grantedgrantedCritical
Publication of AT353775BpublicationCriticalpatent/AT353775B/de