Security & Protection
| Mon 31 Aug 2026
Beijing, Aug. 31 -- Chinese Patent for Insulating Single Ladder Capable of Alarming has been issued to Tech College Branch of State Grid Corporation and Shandong Electric Power College. This invention was developed by Li Pei, Li Hongbo, Ma Mengchao, Zhang Yanyan, Ai Ye, Fu Xiaolin, Guo Xiangxiong, Guo Liangfeng, Guo Jiadong and ..