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person:("Peng, Fei")

    Lifting hook type self-lifting freight cableway running trolley and running system

    Free access
    LIU CHEN / QIN JIAN / JIANG MING et al. | European Patent Office | 2023

    Freight cableway running trolley and system

    Free access
    LUO KEWEI / WU FENQIAN / QIN JIAN et al. | European Patent Office | 2023

    Device and method for preventing rocker arm from automatically folding and double-rocker arm floor derrick device

    Free access
    LIU KAI / LUO YIHUA / PAN JIE et al. | European Patent Office | 2024

    Steel wire rope locking device and tower assembling construction device and method

    Free access
    MENG FANHAO / XIA YONGJUN / LIU KAI et al. | European Patent Office | 2024

    Electromagnetic rotation limiting device and tower assembling construction device and method

    Free access
    MENG FANHAO / LIU KAI / MA YONG et al. | European Patent Office | 2023