Transportation
| Mon 18 May 2026
Beijing, May 19 -- China Unicom has submitted a patent application for Positioning Method and Device for Container Train Wagon and Medium. Wei Liang, Guan Lijun, Chen Shengbao, Cheng Yuan, Qi Guangyue, Liu Xiaogang, Zhang Jing, Wang Jie, Cheng Xuehai, Chang Shuyu and Tuld Buick Kalehar developed the invention.
The patent applic..