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 Adolf Kirsten, Klaus Klingenberg, Rasehorn Hans Juergen, Helmut Imhof, Johann Ries, Wecke Hans JoachimfiledCriticalAdolf Kirsten
Priority to DD19587576ApriorityCriticalpatent/DD128470B1/en
Publication of DD128470A1publicationCriticalpatent/DD128470A1/en
Publication of DD128470B1publicationCriticalpatent/DD128470B1/en