Security & Protection
| Fri 22 May 2026
Beijing, May 23 -- Shenzhen Power Supply Bureau has filed a patent application for Fire Early Warning Device. This invention was developed by Dong Xin, Yu Ying, Lv Qishen, Tian Zhiren, Li Yan, Chen Xian, Xiang Zhen, Zhang Xin, Chen Zhiqiang, Hu Liguang, Xian Cheng, Dang Xiaojing, Zhang Fengyin, Xu Shu, Wang Zhenhua, Wang Haoyu a..