GENEVA, June 29 -- CNOOC TIANJIN CHEMICAL RESEARCH & DESIGN INSTITUTE CO., LTD (No.85, 3rd Road Dingzigu,Hongqiao District, Tianjin 300131), 中海油天津化工研究设计院有限公司 (中国天津市红桥区丁字沽三号路85号), CNOOC ENERGY TECHNOLOGY & SERVICES LIMITED (No.6, Dongzhimenwai Xiaojie,Dongcheng District, Beijing 100027), 中海油能源发展股份有限公司 (中国北京市东城区东直门外小街6号) filed a patent a...
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