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 Севастопольский Приборостроительный ИнститутfiledCriticalСевастопольский Приборостроительный Институт
Priority to SU772549255ApriorityCriticalpatent/SU638930A1/ru
Application grantedgrantedCritical
Publication of SU638930A1publicationCriticalpatent/SU638930A1/ru