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 И.М. БалакинfiledCriticalИ.М. Балакин
Priority to SU3435802/26ApriorityCriticalpatent/SU1075495A1/en
Application grantedgrantedCritical
Publication of SU1075495A1publicationCriticalpatent/SU1075495A1/en