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 Vissh Lesotekhnicheski InstfiledCriticalVissh Lesotekhnicheski Inst
Priority to BG8530688ApriorityCriticalpatent/BG46351A1/en
Publication of BG46351A1publicationCriticalpatent/BG46351A1/en