Retail & Household
| Fri 20 Feb 2026
Beijing, Feb. 20 -- Xuchang Tobacco Machinery Co Ltd has sought patent for Multi-channel Hollow Filter Stick Forming Device. This invention was developed by Liu Kai, Qin Lei, Bi Guojin, Kong Fangliang, Dou Wuyang, Wu Kongyou, Wang Huailiang, Zhang Xuan, Li Chenxu, Shi Yongqing, Wang Zhiwei, Liu Xiaodong, Du Jiangheng and Sun Pen..