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    Workpiece overturning system with safety limiting device, and mining dump truck

    Free access
    QIN HONGYI / HAN LEI / LI GUOQING et al. | European Patent Office | 2020

    Lifting system convenient to disassemble and assemble and disassembling and assembling method

    Free access
    QIN HONGYI / WANG ZHOU / CHEN ZHUO et al. | European Patent Office | 2023

    Steering structure for cab of mining dump truck

    Free access
    HAN LEI / ZHANG JIESHAN / QIN HONGYI et al. | European Patent Office | 2021

    Cargo compartment safety supporting device, operation method and dump truck

    Free access
    QIN HONGYI / ZHANG JIESHAN / YAO XIJIANG et al. | European Patent Office | 2023

    Rearview mirror bracket fixing device, rearview mirror mounting assembly and mining dump truck

    Free access
    HAN LEI / QIN HONGYI / CHEN HAIYAN et al. | European Patent Office | 2023

    Battery fixing device, mining dump truck and battery fixing method

    Free access
    HAN LEI / ZHANG JIESHAN / CHEN HAIYAN et al. | European Patent Office | 2024