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Application filed by Latvijas Keramika, Univ Rigas TehniskafiledCriticalLatvijas Keramika
Priority to LVP-97-173ApriorityCriticalpatent/LV11990B/en
Publication of LV11990ApublicationCriticalpatent/LV11990A/en
Publication of LV11990BpublicationCriticalpatent/LV11990B/en