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 Научно-Техническое Объединение "Грузниистром"filedCriticalНаучно-Техническое Объединение "Грузниистром"
Priority to SU782620267ApriorityCriticalpatent/SU700629A1/ru
Application grantedgrantedCritical
Publication of SU700629A1publicationCriticalpatent/SU700629A1/ru