1–7 of 7 hits
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    Direct drive volume control electro-hydraulic servo device

    Free access
    LIU YUFENG / DONG WANYU / SHI CHEN et al. | European Patent Office | 2022

    Underground ladder truck

    Free access
    WANG TONGFEI / TANG PEIZHEN / ZHENG WEIGUO et al. | European Patent Office | 2022

    Ride-sharing method based on traffic sustainable development

    Free access
    CHEN XIAOHONG / ZHENG WEIGUO / LI JINTAO et al. | European Patent Office | 2021

    Downhole mining diesel-electric dual-purpose crushing trolley

    Free access
    ZHENG WEIGUO / WANG TONGFEI / LEE SANG-KYU et al. | European Patent Office | 2023

    Compact type mine transporting truck

    Free access
    LUO ZHENXING / TANG PEIZHEN / WANG TONGFEI et al. | European Patent Office | 2022

    Underground anti-explosion forklift

    Free access
    ZHENG WEIGUO / LI XUEJUN / MENG XIANGJUN et al. | European Patent Office | 2023