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-4709filedCriticalПредприятие П/Я Г-4709
Priority to SU1681272ApriorityCriticalpatent/SU554592A1/ru
Application grantedgrantedCritical
Publication of SU554592A1publicationCriticalpatent/SU554592A1/ru