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Application filed by Vladimir V Bubnov, Anatolij G Elizarov, Vladimir E Alalykin, Oleg M Chigrinskij, Stanislav V Ptichnikov, Yurij N ZimitskijfiledCriticalVladimir V Bubnov
Priority to SU854022912ApriorityCriticalpatent/SU1366411A1/en
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Publication of SU1366411A1publicationCriticalpatent/SU1366411A1/en