Tools and Machinery
| Thu 27 Nov 2025
Beijing, Nov. 28 -- Baoshan Power Supply Bureau of Yunnan Power Grid has applied Chinese patent for Blocking Tool for Serial Port. Lu Shuanggui, Yang Zongming, Su Rong, Xu Zhengya, Lang Jie, Yang Changdong, Chu Yongjie, Yang Chang-hoo, Wu Xiaoyuan, Ding Jiaxi and Li Shudong developed it.
The patent application number is CN20241..