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 Sergej V Gavrikov, Mikhail V Semenov, Yurij E SemenovfiledCriticalSergej V Gavrikov
Priority to SU884447916ApriorityCriticalpatent/SU1590987A1/ru
Application grantedgrantedCritical
Publication of SU1590987A1publicationCriticalpatent/SU1590987A1/ru