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Application filed by Vladislav G Brilevskij, Nikodim A Donbrov, Vladimir G KovganfiledCriticalVladislav G Brilevskij
Priority to SU843713013ApriorityCriticalpatent/SU1174871A1/ru
Application grantedgrantedCritical
Publication of SU1174871A1publicationCriticalpatent/SU1174871A1/ru