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 Franz BauerfiledCriticalFranz Bauer
Priority to DD20344078ApriorityCriticalpatent/DD135295A1/de
Publication of DD135295A1publicationCriticalpatent/DD135295A1/de