INTERNATIONAL PATENT: CHINA OIL & GAS PIPELINE NETWORK CORPORATION, 国家石油天然气管网集团有限公司, PIPECHINA INSTITUTE OF SCIENCE AND TECHNOLOGY, 国家石油天然气管网集团有限公司科学技术研究总院分公司 FILES APPLICATION FOR "PIPELINE DEFECT DETECTION SYSTEM AND METHOD"

GENEVA, Jan. 4 -- CHINA OIL & GAS PIPELINE NETWORK CORPORATION (Room 08-10, 6th Floor, Block 5A, Dongtucheng RoadChaoyang District, Beijing 100013), 国家石油天然气管网集团有限公司 (中国北京市朝阳区东土城路5号A座6层08-10室), PIPECHINA INSTITUTE OF SCIENCE AND TECHNOLOGY (6th Floor, Building 2, Science And Technology Development Center, No. 4, Dongting First Street, Tianjin Economic-Technological Development AreaBinhai New Area, Tianjin 300450), 国家石油天然气管网集团有限公...