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Application filed by В.Г. ШиршовfiledCriticalВ.Г. Ширшов
Priority to SU2995503/06ApriorityCriticalpatent/RU944399C/en
Priority claimed from SU2995503/06Aexternal-prioritypatent/RU944399C/en
Application grantedgrantedCritical
Publication of SU944399A1publicationCriticalpatent/SU944399A1/en
Publication of RU944399CpublicationCriticalpatent/RU944399C/en