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 Khabarovsk Polt InstfiledCriticalKhabarovsk Polt Inst
Priority to SU904893154ApriorityCriticalpatent/RU1785753C/en
Application grantedgrantedCritical
Publication of RU1785753CpublicationCriticalpatent/RU1785753C/en