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 Ts N Proizv Ob Edinenie LeninefiledCriticalTs N Proizv Ob Edinenie Lenine
Priority to SU4898781priorityCriticalpatent/RU1821796C/en
Application grantedgrantedCritical
Publication of RU1821796CpublicationCriticalpatent/RU1821796C/en