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 W MnilkfiledCriticalHans W Mnilk
Priority to DD20647478ApriorityCriticalpatent/DD138044B1/de
Publication of DD138044A1publicationCriticalpatent/DD138044A1/de
Publication of DD138044B1publicationCriticalpatent/DD138044B1/de