Defense
| Tue 29 Sep 2026
Beijing, Sept. 28 -- Hainan Saifu Civil Air Defense Eng Co Ltd has received a patent for Civil Air Defense Door Maintenance Spraying Device. This invention was developed by Zeng Wei, Fu Shengwang, Chen Chao, Huang Chunqing, Fu Yajin, Zeng Weiyang and Chen Zhenye.
The patent application number is CN20252095305U 20250115. The p..