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Application filed by Arnold A Pisman, Mikhail E Sakhin, Viktor V SkryabinfiledCriticalArnold A Pisman
Priority to SU884473566ApriorityCriticalpatent/SU1592788A1/en
Application grantedgrantedCritical
Publication of SU1592788A1publicationCriticalpatent/SU1592788A1/en