1–20 of 372 hits
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    Auxiliary getting-on and getting-off device for automobile trunk

    Free access
    XU LEI | European Patent Office | 2023

    Hollow brick high-level transportation equipment

    Free access
    XU LEI | European Patent Office | 2020

    Mid-motor drive system for an electric bicycle

    Free access
    XU LEI | European Patent Office | 2017

    MID-MOTOR DRIVE SYSTEM FOR AN ELECTRIC BICYCLE

    Free access
    XU LEI | European Patent Office | 2016

    ETC door frame track data complementation method

    Free access
    YANG LEI / XU LEI | European Patent Office | 2024

    Vehicle steering auxiliary method, device and equipment

    Free access
    XU LEI / HAN XIAO | European Patent Office | 2021