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 filed by Dietrich Papendorf, Barbara Mehnert, Manfred UllrichfiledCriticalDietrich Papendorf
Priority to DD20184277ApriorityCriticalpatent/DD133767A1/en
Publication of DD133767A1publicationCriticalpatent/DD133767A1/en