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Application filed by Spiral Ludvik, Stanislav Kosik, Michal KubicekfiledCriticalSpiral Ludvik
Priority to CS875610ApriorityCriticalpatent/CS265383B1/en
Publication of CS561087A1publicationCriticalpatent/CS561087A1/en
Publication of CS265383B1publicationCriticalpatent/CS265383B1/en