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 Ljudmil G Dakovski, Ljubomir G Balkandzhiev, Georgi S ZaprjanovfiledCriticalLjudmil G Dakovski
Priority to BG8144187ApriorityCriticalpatent/BG44677A1/xx
Publication of BG44677A1publicationCriticalpatent/BG44677A1/xx