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Publication date
Application filed by Slavcho I Patev, Ivan T Cankov, Stefan A Serbezov, Radka Ja Serbezova, Anastas E Gerasimov, Nadezhda B Drenska, Rov Ilija S Chak, Mikhail G NenovfiledCriticalSlavcho I Patev
Priority to BG8288188ApriorityCriticalpatent/BG45310A1/xx
Publication of BG45310A1publicationCriticalpatent/BG45310A1/xx