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 Schmidt Wolf Diether, Guenter AlbrechtfiledCriticalSchmidt Wolf Diether
Priority to DD20628078ApriorityCriticalpatent/DD137491A1/en
Publication of DD137491A1publicationCriticalpatent/DD137491A1/en