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Application filed by А.Б. Изачик, Б.Н. ТарусовfiledCriticalА.Б. Изачик
Priority to SU127976ApriorityCriticalpatent/SU39932A1/ru
Application grantedgrantedCritical
Publication of SU39932A1publicationCriticalpatent/SU39932A1/ru