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 DE2217722Aexternal-prioritypatent/DE2217722C2/de
Application filed by Basf AgfiledCriticalBasf Ag
Priority to DK682374ApriorityCriticalpatent/DK134461C/da
Publication of DK682374ApublicationCriticalpatent/DK682374A/da
Publication of DK134461BpublicationCriticalpatent/DK134461B/da
Application grantedgrantedCritical
Publication of DK134461CpublicationCriticalpatent/DK134461C/da