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 Ljubomir N Genchev, Stojan S Tanchev, Kostadin S Kljamov, Nchev Danail C Gr, Zakhari N VelchevfiledCriticalLjubomir N Genchev
Priority to BG8191887ApriorityCriticalpatent/BG44721A1/xx
Publication of BG44721A1publicationCriticalpatent/BG44721A1/xx