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Application filed by Mikhail D Vlasov, Viktor M Tanygin, Aleksejj D Makarov, Anatolijj S Spiridonov, Nikolajj D Chemodanov, Ivan A Jashkin, Aleksandr G BlazhnovfiledCriticalMikhail D Vlasov
Priority to BG6859885ApriorityCriticalpatent/BG45503A1/xx
Publication of BG45503A1publicationCriticalpatent/BG45503A1/xx