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 Aleksand R V Zakhariev, Vesko M Vegenov, Dimit R P Kulunev, Ivan A Ivanov, Ivan A Popov, Ginka T Petrova, Marija A Stanimirova, Marija D Docheva, Tinka T GeorgievafiledCriticalAleksand R V Zakhariev
Priority to BG8013687ApriorityCriticalpatent/BG44044A1/en
Publication of BG44044A1publicationCriticalpatent/BG44044A1/en