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Application filed by V Z Dyatchin, V P Franchuk, S A Matveev, L A Popov, L S ZakhidovafiledCriticalV Z Dyatchin
Priority to SU864126806ApriorityCriticalpatent/SU1381899A1/en
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Publication of SU1381899A1publicationCriticalpatent/SU1381899A1/en