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 Erhard Jablonski, Promnitz Hans Georg, Lorkowski Hans Joachim, Brigitte Rapsch, Peter GlasfiledCriticalErhard Jablonski
Priority to DD20844678ApriorityCriticalpatent/DD139312A1/de
Publication of DD139312A1publicationCriticalpatent/DD139312A1/de