Metal & Mining
| Fri 14 Aug 2026
Beijing, Aug. 14 -- Guangdong Yunhai Electronic Tech Co Ltd has been granted a patent for Campus Entrance Guard Protection Device. Chen Shixiang, Guo Yong, Liu Yiyong, He Siyuan, Peng Guojian, Zhang Jian, Li Minchao, Li Weiming and Huang Yiming developed the invention.
The patent application number is CN202422690672U 20241105..