Electrical
| Thu 09 Apr 2026
Beijing, April 9 -- Kunming Power Supply Bureau Yunnan Power Grid has secured a patent on Power Supply Switching Grounding Device. Cui En, Zeng Cheng, Zhu Quancong, Liu Fujin, Qin Le, Zhao Xi, Duan Weixun, Wang Yakun, Shi Zhaoqi, Yang Chunhong, Li Yuntao, Tang Jianyou, Wang Zhengyan, Li Xiaodong, Yang Yonghua, Yu Songli, Li Wend..