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Application filed by В.Т. Павлов, М.Д. Рязанцев, занцев М.Д. РfiledCriticalВ.Т. Павлов
Priority to SU96546ApriorityCriticalpatent/SU33535A1/ru
Application grantedgrantedCritical
Publication of SU33535A1publicationCriticalpatent/SU33535A1/ru