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 Vera A Gubernatorova, Boris P Zhantalai, Raisa M Slobodyanik, Anna A SopovafiledCriticalVera A Gubernatorova
Priority to DD20579578ApriorityCriticalpatent/DD137094A1/en
Publication of DD137094A1publicationCriticalpatent/DD137094A1/en