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 Helmut Storch, Wieland Reindel, Wolfram GlaeserfiledCriticalHelmut Storch
Priority to DD20526278ApriorityCriticalpatent/DD136347B1/de
Publication of DD136347A1publicationCriticalpatent/DD136347A1/de
Publication of DD136347B1publicationCriticalpatent/DD136347B1/de