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Application filed by Vagan Sh Arutyunyan, Arutyun K ArakelyanfiledCriticalVagan Sh Arutyunyan
Priority to SU884447892ApriorityCriticalpatent/SU1568235A1/en
Application grantedgrantedCritical
Publication of SU1568235A1publicationCriticalpatent/SU1568235A1/en