Medical
| Sat 10 Oct 2026
Beijing, Oct. 10 -- Chengde Central Hospital has obtained a patent for breathing exercise device. This invention was developed by Cao Yanfang, Ma Jianhua, Wang Huili, Sheng Guofang, Hu Haijuan, Wu Jing, Li Qiang, Zhou Xinyang, Li Na and Zheng Rongchao.
The patent application number is CN202520312046U 20250226. The patent publ..