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 Erhard SendzikfiledCriticalErhard Sendzik
Priority to DD19427976ApriorityCriticalpatent/DD132392A3/de
Publication of DD132392A3publicationCriticalpatent/DD132392A3/de