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 Пензенский Политехнический ИнститутfiledCriticalПензенский Политехнический Институт
Priority to SU7602346320ApriorityCriticalpatent/SU573806A1/ru
Application grantedgrantedCritical
Publication of SU573806A1publicationCriticalpatent/SU573806A1/ru