1–20 of 1,891 hits
|

    Size-adjustable field ridge forming fixed mold device

    Free access
    ZHANG LEI | European Patent Office | 2021

    Emergency rescue multi-rotor unmanned aerial vehicle

    Free access
    ZHANG LEI | European Patent Office | 2021

    Method and system for identifying state of parking space in sheltered area

    Free access
    ZHANG LEI | European Patent Office | 2024

    Dynamic variable speed limit control method

    Free access
    ZHANG LEI | European Patent Office | 2020

    Vehicle compartment cover and vehicle

    Free access
    ZHANG LEI | European Patent Office | 2020

    Aircraft cabin door connecting rod constant force method and device

    Free access
    ZHANG LEI | European Patent Office | 2020

    Vehicle door control method and system and vehicle

    Free access
    ZHANG LEI | European Patent Office | 2023