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Publication date
Application filed by В.Г. ШиршовfiledCriticalВ.Г. Ширшов
Priority to SU2676501/06ApriorityCriticalpatent/RU733372C/ru
Priority claimed from SU2676501/06Aexternal-prioritypatent/RU733372C/ru
Application grantedgrantedCritical
Publication of SU733372A1publicationCriticalpatent/SU733372A1/ru
Publication of RU733372CpublicationCriticalpatent/RU733372C/ru