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| Fri 26 Dec 2025
Beijing, Dec. 26 -- State Grid Ningxia Electric Power Ningdong Power Supply Company has secured a patent on Telescopic Signboard for Screen Cabinet. Wu Wenjuan, Zhang Yuan, Li Chunmin, Sun Wenli, Zhang Xudong, Li Haiming, Mo Wenbin, Zhai Hucheng and Tao Yuling developed the invention.
The patent application number is CN20242035..