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 Slavi K Ivanov, Stefan P Marinov, Zhecho D Kalichin, Setrak K Tanieljan, Petko T GeorgievfiledCriticalSlavi K Ivanov
Priority to BG7889987ApriorityCriticalpatent/BG43916A1/en
Publication of BG43916A1publicationCriticalpatent/BG43916A1/en