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
Application filedfiledCritical
Priority to DD19092976ApriorityCriticalpatent/DD123699B1/de
Publication of DD123699A1publicationCriticalpatent/DD123699A1/xx
Publication of DD123699B1publicationCriticalpatent/DD123699B1/de
