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Application filed by Oleg S Cechov, Boris T Vasiljev, Ruslav Z Chiterev, Michail G Berengarten, Tatana I Bondareva, Anatolij G Vorotnikov, Ivan I Rumjancev, Jurij I KiprijanovfiledCriticalOleg S Cechov
Priority to CS83337ApriorityCriticalpatent/CS251223B1/en
Publication of CS33783A1publicationCriticalpatent/CS33783A1/en
Publication of CS251223B1publicationCriticalpatent/CS251223B1/en