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 A V Veto, M P Karpushin, A S Skrylev, N V TrenevafiledCriticalA V Veto
Priority to SU813265948ApriorityCriticalpatent/RU965252C/ru
Application grantedgrantedCritical
Publication of RU965252CpublicationCriticalpatent/RU965252C/ru