Security & Protection
| Wed 16 Sep 2026
Beijing, Sept. 16 -- Li Jie has secured a patent on Auxiliary Suspension Device for Air Switch Safety Warning Board. Li Jie, Wan Tao, Shen Pan, Gu Lizhong, Jiang Yuhang, Zhou Lian, Wu Jianwei, Wei Jintong, Wei Shuyue and Zhang Xianjie developed the invention.
The patent application number is CN202423170875U 20241223. The pate..