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 Emanuel Reif, Guenter Graefe, Klaus Weickert, Theo Vogel, Manfred Wagner, Heinz Preller, Dieter Reif, Peter LohsefiledCriticalEmanuel Reif
Priority to DD20489078ApriorityCriticalpatent/DD135808A1/de
Publication of DD135808A1publicationCriticalpatent/DD135808A1/de