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 М-5532filedCriticalПредприятие П/Я М-5532
Priority to SU772506638ApriorityCriticalpatent/SU647573A1/ru
Application grantedgrantedCritical
Publication of SU647573A1publicationCriticalpatent/SU647573A1/ru