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 М.О. ФилатовfiledCriticalМ.О. Филатов
Priority to SU48873ApriorityCriticalpatent/SU24896A1/en
Application grantedgrantedCritical
Publication of SU24896A1publicationCriticalpatent/SU24896A1/en