Retail & Household
| Tue 06 Oct 2026
Beijing, Oct. 6 -- Sinohydro Engineering Bureau 5 has secured a patent on Self-propelled Trolley. Li Fahai, Li Zheng, Zhao Yunfei, Xiong Liang, Zhang Jiafu, Li Dunquan, Si Yu and Hu Jing developed the invention.
The patent application number is CN202520683420U 20250411. The patent publication number is CN223767509 (U). Intern..