INTERNATIONAL PATENT: POWERCHINA CHENGDU ENGINEERING CORPORATION LIMITED, 中国电建集团成都勘测设计研究院有限公司, INSTITUTE OF ROCK AND SOIL MECHANICS, CHINESE ACADEMY OF SCIENCES, 中国科学院武汉岩土力学研究所, WUHAN CHANGSHENG MINE SECURITY TECHNOLOGY LIMITED, 武汉长盛煤安科技有限公司 FILES APPLICATION FOR "IN-BOREHOLE AND OUT-BOREHOLE INTEGRATED WHILE-DRILLING TESTING EQUIPMENT AND METHOD FOR STRENGTH OF DEEP ROCK MASS"

GENEVA, May 3 -- POWERCHINA CHENGDU ENGINEERING CORPORATION LIMITED (No. 1, Huanhua North Road, Qingyang DistrictChengdu, Sichuan 610072), 中国电建集团成都勘测设计研究院有限公司 (中国四川省成都市青羊区浣花北路1号), INSTITUTE OF ROCK AND SOIL MECHANICS, CHINESE ACADEMY OF SCIENCES (No.2, Xiaohongshan, Shuiguohu Street, Wuchang DistrictWuhan, Hubei 430064), 中国科学院武汉岩土力学研究所 (中国湖北省武汉市...