INTERNATIONAL PATENT: CHINA RAILWAY FOURTH BUREAU GROUP CO., LTD, 中铁四局集团有限公司, CHINA RAILWAY FOURTH BUREAU GROUP CO., LTD. CHUANGZHI ENGINEERING TECHNOLOGY BRANCH, 中铁四局集团有限公司创智工程科技分公司 FILES APPLICATION FOR "ELECTRICAL RESISTIVITY TOMOGRAPHY DETECTION METHOD AND APPARATUS FOR LEAKAGE AT JOINT OF UNDERGROUND DIAPHRAGM WALL"

GENEVA, March 22 -- CHINA RAILWAY FOURTH BUREAU GROUP CO., LTD (No. 96, Wangjiang East Road, Baohe DistrictHefei, Anhui 230000), 中铁四局集团有限公司 (中国安徽省合肥市包河区望江东路96号), CHINA RAILWAY FOURTH BUREAU GROUP CO., LTD. CHUANGZHI ENGINEERING TECHNOLOGY BRANCH (3rd Floor, Engineering Technology Research Institute of China Railway Fourth Bureau Group Co., Ltd., 96# Wangjiang East Road, Baohe DistrictHefei, Anhui 230000), 中铁四局集团有限公司创智工程科技分公司 (È...