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 И. А. Прудников, В. А. лицын , И. Р. буховfiledCriticalИ. А. Прудников, В. А. лицын , И. Р. бухов
Priority to SU835105ApriorityCriticalpatent/SU174281A1/ru
Application grantedgrantedCritical
Publication of SU174281A1publicationCriticalpatent/SU174281A1/ru