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 Предприятие П/Я Г-4693filedCriticalПредприятие П/Я Г-4693
Priority to SU1851106ApriorityCriticalpatent/SU540980A1/ru
Application grantedgrantedCritical
Publication of SU540980A1publicationCriticalpatent/SU540980A1/ru