Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by В.Я. БродовfiledCriticalВ.Я. Бродов
Priority to SU2971998/10ApriorityCriticalpatent/SU882295A2/ru
Application grantedgrantedCritical
Publication of RU882295CpublicationCriticalpatent/RU882295C/ru
Publication of SU882295A2publicationCriticalpatent/SU882295A2/ru