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 Klaus Boehm, Gerd Broechler, Kupka Hans Joerg, Klaus PollackfiledCriticalKlaus Boehm
Priority to DD20494578ApriorityCriticalpatent/DD135443A1/de
Publication of DD135443A1publicationCriticalpatent/DD135443A1/de