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 Gerhard Mieth, Joachim Pohl, Juergen Kroll, Juergen Brueckner, Ellen Weigelt, Marianne RolofffiledCriticalGerhard Mieth
Priority to DD20637178ApriorityCriticalpatent/DD137399A1/de
Publication of DD137399A1publicationCriticalpatent/DD137399A1/de