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Priority claimed from DE2616416Aexternal-prioritypatent/DE2616416C2/de
Application filed by Basf AgfiledCriticalBasf Ag
Priority to AT369679ApriorityCriticalpatent/AT373903B/de
Publication of ATA369679ApublicationCriticalpatent/ATA369679A/de
Application grantedgrantedCritical
Publication of AT373903BpublicationCriticalpatent/AT373903B/de