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Application filed by Vezenkov, Georgiev, Shekerdzhijski, Sharankov, Kafedzhijski, PargovfiledCriticalVezenkov
Priority to BG90875ApriorityCriticalpatent/BG60582B1/en
Publication of BG90875ApublicationCriticalpatent/BG90875A/en
Publication of BG60582B1publicationCriticalpatent/BG60582B1/en