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 Zaehringer, Hans VoigtfiledCriticalKlaus Zaehringer
Priority to DD18665875ApriorityCriticalpatent/DD129955A3/xx
Publication of DD129955A3publicationCriticalpatent/DD129955A3/xx