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 А.Б. КостинfiledCriticalА.Б. Костин
Priority to SU3372085/21ApriorityCriticalpatent/SU1063233A1/en
Application grantedgrantedCritical
Publication of SU1063233A1publicationCriticalpatent/SU1063233A1/en