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 Oleg A Sorokin, Ivan A KrukfiledCriticalOleg A Sorokin
Priority to SU833630267ApriorityCriticalpatent/SU1150272A1/en
Application grantedgrantedCritical
Publication of SU1150272A1publicationCriticalpatent/SU1150272A1/en