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.В. РатушнюкfiledCriticalИ.В. Ратушнюк
Priority to SU31385ApriorityCriticalpatent/SU15385A1/ru
Application grantedgrantedCritical
Publication of SU15385A1publicationCriticalpatent/SU15385A1/ru