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Priority claimed from DE2257344Aexternal-prioritypatent/DE2257344C2/de
Application filed by Bayer AgfiledCriticalBayer Ag
Publication of DK171776ApublicationCriticalpatent/DK171776A/da
Publication of DK144403BpublicationCriticalpatent/DK144403B/da
Application grantedgrantedCritical
Publication of DK144403CpublicationCriticalpatent/DK144403C/da