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Application grantedgrantedCritical
Publication of SU10018A1publicationCriticalpatent/SU10018A1/ru
Application filed by А.Б. КоронаfiledCriticalА.Б. Корона
Priority to SU20099ApriorityCriticalpatent/SU54620A1/ru
Publication of SU54620A1publicationCriticalpatent/SU54620A1/ru