1–5 of 5 hits
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    High-speed rail steel rail corrugation detection device and method

    Free access
    WU JUNJIAN / ZHANG LEI / HU SHAONAN et al. | European Patent Office | 2024

    Buried traffic signal lamp intelligent control method and system

    Free access
    LIU JUN / SHAO QUANLI / LI GUI et al. | European Patent Office | 2022

    Buckle type traffic signal lamp mounting structure

    Free access
    MA CHENGGANG / LIU HONGGANG / LIU CHUNLEI et al. | European Patent Office | 2022

    Road traffic signal lamp based on Internet of Things

    Free access
    LIU JUN / SHAO QUANLI / JIANG SHUAI et al. | European Patent Office | 2020

    Intelligent traffic signal lamp system

    Free access
    LIU JUN / SHAO QUANLI / LI GUI et al. | European Patent Office | 2020