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 Bernd Mueller, Horst SchaedlichfiledCriticalBernd Mueller
Priority to DD19547476ApriorityCriticalpatent/DD128514B1/de
Publication of DD128514A1publicationCriticalpatent/DD128514A1/de
Publication of DD128514B1publicationCriticalpatent/DD128514B1/de