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 Boris Shramban, Nikolaj Krajnev, Olga D Kirnasova, Evgeniya M PavlovafiledCriticalBoris Shramban
Priority to SU772450701ApriorityCriticalpatent/SU648514A1/en
Application grantedgrantedCritical
Publication of SU648514A1publicationCriticalpatent/SU648514A1/en