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 Dmitrij B ShitikovfiledCriticalDmitrij B Shitikov
Priority to SU843710012ApriorityCriticalpatent/SU1175862A1/ru
Application grantedgrantedCritical
Publication of SU1175862A1publicationCriticalpatent/SU1175862A1/ru