INTERNATIONAL PATENT: CHINA RAILWAY SEVENTH GROUP CO., LTD, 中铁七局集团有限公司, ZHENGZHOU ENGINEERING CO., LTD OF CHINA RAILWAY SEVENTH GROUP, 中铁七局集团郑州工程有限公司 FILES APPLICATION FOR "STEEL RAIL LIFTING DEVICE"

Posted On: 2025-03-24

GENEVA, March 24 -- CHINA RAILWAY SEVENTH GROUP CO., LTD (No.1225, East-Hanghai RoadZhengzhou, Henan 450016), 中铁七局集团有限公司 (中国河南省郑州市航海东路1225号), ZHENGZHOU ENGINEERING CO., LTD OF CHINA RAILWAY SEVENTH GROUP (No.8, Middle-Longhai RoadZhengzhou, Henan 450052), 中铁七局集团郑州工程有限公司 (中国河南省郑州市陇海中路8号) filed a patent application (PCT/CN2024/128735) for "STEEL RAIL LIFTING DEVICE" on Oct 31, 2024. With publication...

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INTERNATIONAL PATENT: CHINA RAILWAY SEVENTH GROUP CO., LTD, 中铁七局集团有限公司, ZHENGZHOU ENGINEERING CO., LTD OF CHINA RAILWAY SEVENTH GROUP, 中铁七局集团郑州工程有限公司 FILES APPLICATION FOR "STEEL RAIL LIFTING DEVICE"