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 Manfred Kadner, Peter WolfffiledCriticalManfred Kadner
Priority to DD20460178ApriorityCriticalpatent/DD137898A1/de
Publication of DD137898A1publicationCriticalpatent/DD137898A1/de