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Application filed by Igor P Ilin, Stanislav A Kopev, Vyacheslav P Nikonov, Boris N IgnatovfiledCriticalIgor P Ilin
Priority to SU884481175ApriorityCriticalpatent/SU1617417A1/en
Application grantedgrantedCritical
Publication of SU1617417A1publicationCriticalpatent/SU1617417A1/en