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 Troeger Johannes Dr Ing, Roland Dr Sc Techn Fischer, Laeuter Gernot Dipl IngfiledCriticalTroeger Johannes Dr Ing
Priority to DD19203176ApriorityCriticalpatent/DD124779B1/de
Publication of DD124779A1publicationCriticalpatent/DD124779A1/xx
Publication of DD124779B1publicationCriticalpatent/DD124779B1/de