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Application filed by Viktor P Baraban, Stanislav F Zabrovskij, Albart F Zvjagin, Grigorij V Lazarev, Jak A TarsfiledCriticalViktor P Baraban
Priority to CS846618ApriorityCriticalpatent/CS260979B1/en
Publication of CS661884A1publicationCriticalpatent/CS661884A1/en
Publication of CS260979B1publicationCriticalpatent/CS260979B1/en