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Application filed by Ljubomir D Pejjchev, Ivan A Kazakov, Dechko P Targov, Rumjana S Rajjcheva, Vladimir G Gjulev, Stojan G Gadzhev, Petko A Mollov, Galina S StojjkovafiledCriticalLjubomir D Pejjchev
Priority to BG8184987ApriorityCriticalpatent/BG44831A1/xx
Publication of BG44831A1publicationCriticalpatent/BG44831A1/xx