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 Werner Schmiedel, Arnd Mueller, Uwe PettersfiledCriticalWerner Schmiedel
Priority to DD19806877ApriorityCriticalpatent/DD131294A1/en
Publication of DD131294A1publicationCriticalpatent/DD131294A1/en