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 Valerij V Vaskovec, Sergej B GavrilenkofiledCriticalValerij V Vaskovec
Priority to DD26886884ApriorityCriticalpatent/DD258331A3/en
Publication of DD258331A3publicationCriticalpatent/DD258331A3/en