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Application filed by Boris G Tregubov, Nikolaj E Trufakin, Olga M PavlyushinafiledCriticalBoris G Tregubov
Priority to SU833665358ApriorityCriticalpatent/SU1146366A1/en
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Publication of SU1146366A1publicationCriticalpatent/SU1146366A1/en