Advertising
| Thu 01 Oct 2026
Beijing, Oct. 1 -- Tongrui Ind Co Ltd has been granted a patent for Round Advertising Board. This invention was developed by Xu Ke, Xu Xinwu, Xu Chaohui, Pan Hao and Pan Zhao.
The patent application number is CN202423297972U 20241231. The patent publication number is CN223728439 (U). International Patent Classification code i..