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Application filed by Chvarov Ivan I B, Emil B Kamenov, Angel A Nikolov, Pencho D Nikolaev, Ivan N Dimitrov, Rusi I Rusev, Nikola S Ivanov, Stojan G Chankov, Nikolajj P KolevfiledCriticalChvarov Ivan I B
Priority to BG8328688ApriorityCriticalpatent/BG45459A1/xx
Publication of BG45459A1publicationCriticalpatent/BG45459A1/xx