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 Н. К. Голуб тников, Ю. А. Грушко , В. Д. ГусевfiledCriticalН. К. Голуб тников, Ю. А. Грушко , В. Д. Гусев
Priority to SU1008896ApriorityCriticalpatent/SU196339A1/ru
Application grantedgrantedCritical
Publication of SU196339A1publicationCriticalpatent/SU196339A1/ru