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 Р-6719filedCriticalПредприятие П/Я Р-6719
Priority to SU752166451ApriorityCriticalpatent/SU663937A1/en
Application grantedgrantedCritical
Publication of SU663937A1publicationCriticalpatent/SU663937A1/en