Retail & Household
| Thu 22 Oct 2026
Beijing, Oct. 22 -- Qingdao Huanghai University has been awarded a patent for Pedal Rolling Type Vamp and Umbrella Air-drying All-in-one Machine. This invention was developed by Gao Shijie, Wang Dazhi, Ding Changhao, Ma Yinghan, Zhang Chenghui, Zheng Hao, Du Qingli, Yao Lei, Liu Shulong and Wang Qiuhao.
The patent application n..