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 Красноярский Политехнический ИнститутfiledCriticalКрасноярский Политехнический Институт
Priority to SU782631172ApriorityCriticalpatent/SU694835A1/ru
Application grantedgrantedCritical
Publication of SU694835A1publicationCriticalpatent/SU694835A1/ru