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    Lifting appliance

    Free access
    ZHOU KEYUAN / GU XICHUN / MENG LANCHUN et al. | European Patent Office | 2023

    Lifting appliance

    Free access
    MENG LANCHUN / GAO FENG / ZHOU KEYUAN et al. | European Patent Office | 2024

    Combined lifting appliance and lifting method

    Free access
    ZHOU KEYUAN / YANG ZHONGYUAN / DU HONGMING et al. | European Patent Office | 2024