Education
| Tue 13 May 2025
Beijing, May 13 -- State Intellectual Property Office of China has awarded a patent to Shunde Polytechnic for pen point and eraser conversion sign pen. Zhang Junxin, Li Guannan, Huang Liuyan, Wang Zhepeng, Chen Hongbin, Chen Guangtian, Wu Yuhao, Wang Yifan, Liu Jinxin, Huang Junpeng, Zhang Linlin, Guo Guanghui and Bae Seung-hyun..