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Application filed by Vasil N Vacov, Kr St O C Savov, Stefan G StanevfiledCriticalVasil N Vacov
Priority to BG6399884ApriorityCriticalpatent/BG43807A1/en
Priority to CU1486Aprioritypatent/CU21992A1/en
Publication of BG43807A1publicationCriticalpatent/BG43807A1/en