Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE2022503Aexternal-prioritypatent/DE2022503B2/en
Priority claimed from DE19702046848external-prioritypatent/DE2046848C3/en
Priority claimed from DK220771Aexternal-prioritypatent/DK137861C/en
Application filed by Hoechst AgfiledCriticalHoechst Ag
Priority to DK442473ApriorityCriticalpatent/DK138543C/en
Publication of DK138543BpublicationCriticalpatent/DK138543B/en
Application grantedgrantedCritical
Publication of DK138543CpublicationCriticalpatent/DK138543C/en