1–5 of 5 hits
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    Rainwater and sewage well lid opening tool

    Free access
    YAN LEI / HE JIANQIANG | European Patent Office | 2021

    High-reliability steel wire rope and steel strand traction device and method

    Free access
    CHENG SHUMAO / CHENG BINGJIANG / YAN LEI | European Patent Office | 2023

    Assembly type floor veneer integrated board convenient to hoist

    Free access
    WANG JIANYAO / YUAN XUEYONG / WEI TONG et al. | European Patent Office | 2020

    Device for cleaning curtain wall through high-pressure atomization and method for cleaning curtain wall

    Free access
    GUO ZHENGCHAO / ZHOU MIN / LI ZHUORONG et al. | European Patent Office | 2021

    Ship chamber of vertical ship lift

    Free access
    LI ZHIXING / ZHAO LIFENG / LI HE et al. | European Patent Office | 2023