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.Е. ФаворскийfiledCriticalА.Е. Фаворский
Priority to SU112501ApriorityCriticalpatent/SU31017A1/en
Application grantedgrantedCritical
Publication of SU31017A1publicationCriticalpatent/SU31017A1/en