Telecom
| Fri 25 Sep 2026
Beijing, Sept. 25 -- State Intellectual Property Office of China has awarded a patent to Chengdu Metro Operation for Double-contact-line Installation Clamp. Huang Daping, Wen Yuqi, Chen Zesheng, Qin Jun, Zhang Lanxuan, Zhou Yongcai, Li Quanxiong, Deng Chaoyu, Yan Wenxiang, Ye Dong, Zheng Jie, Yang Xingxing, Liu Wentao and Guo Ka..