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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Application filed by Г.М. Каган, С.В. ЛебедевfiledCriticalГ.М. Каган
Priority to SU122150ApriorityCriticalpatent/SU37705A1/ru
Application grantedgrantedCritical
Publication of SU37705A1publicationCriticalpatent/SU37705A1/ru