Footwear
| Mon 25 Sep 2023
Beijing, Sept. 26 -- CN Railway Siyuan Survey & Des has submitted a patent application for improved design method suitable for collector shoe. Qi Guangfeng, Huang Dongliang, Xu Hongyan, Shan Chonghao, Wang Liuhui, Liu Yucheng, Fang Zhiguo, Liu Mingjie and Li Hongmei developed the invention.
The patent application number is CN..