Textile
| Sat 14 Jun 2025
Beijing, June 14 -- Jack Technology has secured a patent on oil-free needle bar mechanism of sewing machine and sewing machine. Tan Xinmin, Qiu Yue, Li Baoqing, Hong Zhimin, Song Guoqing, Lin Xiaoxiao and Du Yajun developed the invention.
The patent application number is CN202420404772U 20240304. The patent publication number i..