INTERNATIONAL PATENT: CHINA RAILWAY FIRST GROUP CO., LTD., 中铁一局集团有限公司, CHINA RAILWAY FIRST GROUP TIANJIN CONSTRUCTION CO., LTD, 中铁一局集团天津建设工程有限公司 FILES APPLICATION FOR "AUXILIARY CONCRETE POURING DEVICE"

Posted On: 2025-06-09

GENEVA, June 9 -- CHINA RAILWAY FIRST GROUP CO., LTD. (No. 1, Yanta Road North Section,Xi'an, Shaanxi 710054), 中铁一局集团有限公司 (中国陕西省西安市雁塔路北段1号), CHINA RAILWAY FIRST GROUP TIANJIN CONSTRUCTION CO., LTD (No. 5, Gexin Road,Hebei District, Tianjin 300250), 中铁一局集团天津建设工程有限公司 (中国天津市河北区革新道5号) filed a patent application (PCT/CN2023/135128) for "AUXILIARY CONCRETE POURING DEVICE" on Nov 29, 2023. ...

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INTERNATIONAL PATENT: CHINA RAILWAY FIRST GROUP CO., LTD., 中铁一局集团有限公司, CHINA RAILWAY FIRST GROUP TIANJIN CONSTRUCTION CO., LTD, 中铁一局集团天津建设工程有限公司 FILES APPLICATION FOR "AUXILIARY CONCRETE POURING DEVICE"