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-5537filedCriticalПредприятие П/Я М-5537
Priority to SU2040762ApriorityCriticalpatent/SU521551A1/ru
Application grantedgrantedCritical
Publication of SU521551A1publicationCriticalpatent/SU521551A1/ru