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-5237filedCriticalПредприятие П/Я М-5237
Priority to SU772452548ApriorityCriticalpatent/SU633746A1/en
Application grantedgrantedCritical
Publication of SU633746A1publicationCriticalpatent/SU633746A1/en