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Application filed by Viktor D Nedjalkov, Khristo G Stanchev, Tencho P Peev, Vasil T Vasilev, Ivan S DemirevfiledCriticalViktor D Nedjalkov
Priority to BG8129287ApriorityCriticalpatent/BG44579A1/xx
Publication of BG44579A1publicationCriticalpatent/BG44579A1/xx