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 Klaus Tempelhoff, Guenter Wittke, Klaus BruskefiledCriticalKlaus Tempelhoff
Priority to DD20540378ApriorityCriticalpatent/DD136493A1/en
Publication of DD136493A1publicationCriticalpatent/DD136493A1/en