81–84 of 84 hits
|

    Mining rail type inspection robot climbing auxiliary mechanism

    Free access
    ZHANG HAIFENG / LI YIWEN / QIN WEI et al. | European Patent Office | 2023

    Vertical shaft air pipe lifting tool and lifting device thereof

    Free access
    XU ZHIPENG / KONG DEZHONG / LIU QIANG et al. | European Patent Office | 2024

    Lifting platform

    Free access
    WANG LINMING / LIU QIANG / ZHANG ZHIJUN et al. | European Patent Office | 2024

    Mining elevator gearbox hidden danger identification method and monitoring device

    Free access
    SHE YING / FANG CHONGQUAN / LUO MINGHUA et al. | European Patent Office | 2021