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 А-7716filedCriticalПредприятие П/Я А-7716
Priority to SU772529962ApriorityCriticalpatent/SU665347A2/ru
Application grantedgrantedCritical
Publication of SU665347A2publicationCriticalpatent/SU665347A2/ru