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 В.Е. СоловьевfiledCriticalВ.Е. Соловьев
Priority to SU79750ApriorityCriticalpatent/SU23549A1/ru
Application grantedgrantedCritical
Publication of SU23549A1publicationCriticalpatent/SU23549A1/ru