Retail & Household
| Tue 28 Apr 2026
Beijing, April 29 -- Heilongjiang Construction and Installation Group has submitted a patent application for Multifunctional Lifting Hook with Safety Device. Song Xiaoming, Wang Yen-sung, Wang Xu, Jiang Teng, Liu Xiaozhu, Jia Qingwei, Xu Yingxin, Shi Leilei, Tong Liang and Zhu Yifeng developed the invention.
The patent applicat..