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 Valerij S Boyarintsev, Anatolij A TsybinfiledCriticalValerij S Boyarintsev
Priority to SU904783700ApriorityCriticalpatent/RU1769867C/ru
Application grantedgrantedCritical
Publication of RU1769867CpublicationCriticalpatent/RU1769867C/ru