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Application filed by Йордан Д. Колицов, Кирил Г. КировfiledCriticalЙордан Д. Колицов
Priority to BG107202ApriorityCriticalpatent/BG64876B1/bg
Publication of BG107202ApublicationCriticalpatent/BG107202A/bg
Publication of BG64876B1publicationCriticalpatent/BG64876B1/bg