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 Pavel M Djakonov, Nikolajj N Bakalov, Doncho I Donchev, Stanislav D Kovachev, Ivan D DimitrovfiledCriticalPavel M Djakonov
Priority to BG8181887ApriorityCriticalpatent/BG44818A1/xx
Publication of BG44818A1publicationCriticalpatent/BG44818A1/xx