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.П. ГаврисьfiledCriticalВ.П. Гаврись
Priority to SU49423ApriorityCriticalpatent/SU16884A1/ru
Application grantedgrantedCritical
Publication of SU16884A1publicationCriticalpatent/SU16884A1/ru