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 Vsesoyuznyj Ni Pk I T I ElektrfiledCriticalVsesoyuznyj Ni Pk I T I Elektr
Priority to SU904897909ApriorityCriticalpatent/RU1832211C/en
Application grantedgrantedCritical
Publication of RU1832211CpublicationCriticalpatent/RU1832211C/en