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 Sp Kt Bjuro Fiz Mekh I An UssrfiledCriticalSp Kt Bjuro Fiz Mekh I An Ussr
Publication of BG47774A1publicationCriticalpatent/BG47774A1/xx