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 Stefan I Stefanov, Stefcho P JjordanovfiledCriticalStefan I Stefanov
Priority to BG8300888ApriorityCriticalpatent/BG45259A1/xx
Publication of BG45259A1publicationCriticalpatent/BG45259A1/xx