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| Mon 09 Jun 2025
Beijing, June 9 -- Jiangsu Yanjiang Expressway Company Ltd has been granted a patent for intelligent control signboard control mechanism. Zhai Rui, Liu Ziming, Li Ning, Chen Jun, Chen Yehua, Wang Jiang, Wu Zhijun, Hu Jinzhu and Zhang Jianjun developed the invention.
The patent application number is CN202420334441U 20240223. T..