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Application filed by Mikhail A Diulskij, Sergej A Konev, Feliks D Putilovskij, Fidais M GimranovfiledCriticalMikhail A Diulskij
Priority to SU884399038ApriorityCriticalpatent/SU1546723A1/ru
Application grantedgrantedCritical
Publication of SU1546723A1publicationCriticalpatent/SU1546723A1/ru