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-1080filedCriticalПредприятие П/Я А-1080
Priority to SU772438932ApriorityCriticalpatent/SU643394A1/ru
Application grantedgrantedCritical
Publication of SU643394A1publicationCriticalpatent/SU643394A1/ru