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 Volker RaschfiledCriticalVolker Rasch
Priority to DD19853977ApriorityCriticalpatent/DD131717A1/de
Publication of DD131717A1publicationCriticalpatent/DD131717A1/de