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.)
Filing date
Publication date
Application filed by В.В. Троицкий, Д.Н. ЦитринfiledCriticalВ.В. Троицкий
Priority to SU4584ApriorityCriticalpatent/SU65033A1/ru
Application grantedgrantedCritical
Publication of SU65033A1publicationCriticalpatent/SU65033A1/ru