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 Iosif B Liftman, Shvejkovskij Yurij, Nikolaj P ChibrikinfiledCriticalIosif B Liftman
Priority to SU884402497ApriorityCriticalpatent/SU1592225A1/en
Application grantedgrantedCritical
Publication of SU1592225A1publicationCriticalpatent/SU1592225A1/en