Beijing, July 7 -- Dongguan Baolun Tech Co Ltd has been awarded a patent for jewelry buckle with ball buckle structure. This invention was developed by Sun Zhen, Wu Wenjing and Kuang Sili. The patent application number is CN202420948620U 20240506. The patent publication number is CN222149226 (U). International Patent Classifi..

Beijing, July 5 -- Qinglong County Baicui Jewelry Co Ltd has been awarded a patent for protective structure for jewelry processing. This invention was developed by Duan Jiali, Wang Jie, Luo Jian, Duan Qinghua, Yu Chaowen, Li Zhibo, Cen Mingpei and Chen Yong. The patent application number is CN202420599234U 20240327. The paten..