Институт Фюр Пост Унд Фернмельдевезен (Инопредприятие)
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 Институт Фюр Пост Унд Фернмельдевезен (Инопредприятие)filedCriticalИнститут Фюр Пост Унд Фернмельдевезен (Инопредприятие)
Application grantedgrantedCritical
Publication of SU463593A1publicationCriticalpatent/SU463593A1/ru