Education
| Fri 25 Oct 2024
Beijing, Oct. 25 -- Wenzhou Gemu Stationery has secured a patent on intelligence-promoting child turntable unlocking toy book. Cao Yonghuai, Pang Shuxing, Feng Yixiong, Dong Linling, Li Shuangshuang, Chen Wei, Cao Yongjian, Chen Zhihui, Pan Jiaxiong, Yang Yanfang and Qian Kelu developed the invention.
The patent application n..