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Application filed by В.Г. ШиршовfiledCriticalВ.Г. Ширшов
Priority to SU3429161/06ApriorityCriticalpatent/SU1052041A1/en
Application grantedgrantedCritical
Publication of RU1052041CpublicationCriticalpatent/RU1052041C/en
Publication of SU1052041A1publicationCriticalpatent/SU1052041A1/en