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 Gunter Schober, Ruediger LaleikefiledCriticalGunter Schober
Priority to DD21331479ApriorityCriticalpatent/DD143153A1/de
Priority to BG8047585Aprioritypatent/BG33190A1/xx
Priority to SU807771180Aprioritypatent/SU1066851A1/ru
Priority to CS312880Aprioritypatent/CS230660B1/cs
Publication of DD143153A1publicationCriticalpatent/DD143153A1/de