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 Комбинат Феб Электро-Аппарате-Веркеберлин-Трептов (Инопредприятие)filedCriticalКомбинат Феб Электро-Аппарате-Веркеберлин-Трептов (Инопредприятие)
Application grantedgrantedCritical
Publication of SU610179A1publicationCriticalpatent/SU610179A1/ru