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 Hans Hennig, Johannes Becker, Heinz Mueller, Rudi Moeckel, Josef Jaeger, Gerd KelligfiledCriticalHans Hennig
Priority to DD20675878ApriorityCriticalpatent/DD137913A1/en
Publication of DD137913A1publicationCriticalpatent/DD137913A1/en