Electrical
| Thu 03 Sep 2026
Beijing, Sept. 3 -- State Intellectual Property Office of China has awarded a patent to Guizhou Zhenhua Qunying Electric Appliance , State Owned No 891 Factory for Optical Isolation Switch with High Assembly Density. Li Jianhua, Yan Junzheng, Luo Haiyang, Zhai Yaohua, Luo Tingliang, Meng Xianghong, Chen Tingting and Wang Qiang d..