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Priority claimed from US10/722,364external-prioritypatent/US6982874B2/en
Application filed by Graftech International Holdings Inc.filedCriticalGraftech International Holdings Inc.
Publication of HK1078955A1publicationCriticalpatent/HK1078955A1/zh
Publication of HK1078955BpublicationCriticalpatent/HK1078955B/zh