INTERNATIONAL PATENT: GUANGZHOU METRO DESIGN & RESEARCH INSTITUTE CO., LTD., 广州地铁设计研究院股份有限公司, HUNAN YUNHUI TECHNOLOGY CO., LTD, 湖南沄辉科技股份有限公司 FILES APPLICATION FOR "ELECTRIC PUSH CONTROL SYSTEM FOR VERTICALLY PIVOTED PROTECTIVE DOOR"

Posted On: 2025-08-04

GENEVA, Aug. 4 -- GUANGZHOU METRO DESIGN & RESEARCH INSTITUTE CO., LTD. (No. 129 Yuncheng North 2nd Road, Yuncheng Street, Baiyun DistrictGuangzhou, Guangdong 510420), 广州地铁设计研究院股份有限公司 (中国广东省广州市白云区云城街道云城北二路129号), HUNAN YUNHUI TECHNOLOGY CO., LTD (Room 502, 5th Floor, Building A2, Lugu Yuyuan, No. 27 Wenxuan Road, Changsha High Tech Development ZoneChangsha, Hunan 410001), 湖南沄辉科技股份有限公司 (中国湖&#...

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INTERNATIONAL PATENT: GUANGZHOU METRO DESIGN & RESEARCH INSTITUTE CO., LTD., 广州地铁设计研究院股份有限公司, HUNAN YUNHUI TECHNOLOGY CO., LTD, 湖南沄辉科技股份有限公司 FILES APPLICATION FOR "ELECTRIC PUSH CONTROL SYSTEM FOR VERTICALLY PIVOTED PROTECTIVE DOOR"