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 Voron Politekhn IfiledCriticalVoron Politekhn I
Priority to SU4184513priorityCriticalpatent/RU1487471C/en
Application grantedgrantedCritical
Publication of RU1487471CpublicationCriticalpatent/RU1487471C/en