1–20 of 1,389 hits
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    Ultrasonic detection device for steel pipe

    Free access
    ZHANG JIAN | European Patent Office | 2022

    Robot trolley

    Free access
    ZHANG JIAN | European Patent Office | 2021

    Device state adjusting method and device, electronic device and storage medium

    Free access
    ZHANG JIAN | European Patent Office | 2023

    Waterproof hollow wheel

    Free access
    ZHANG JIAN | European Patent Office | 2024

    Household car anti-theft alarm method

    Free access
    ZHANG JIAN | European Patent Office | 2024

    Transport vehicle

    Free access
    ZHANG JIAN | European Patent Office | 2024

    Automatic alarm system after vehicle collision

    Free access
    ZHANG JIAN | European Patent Office | 2024

    TRANSPORT VEHICLE

    Free access
    ZHANG JIAN | European Patent Office | 2022

    Vehicle

    Free access
    ZHANG JIAN | European Patent Office | 2020

    Lifting platform for maintenance of pole-mounted distribution transformer

    Free access
    ZHANG JIAN | European Patent Office | 2023

    Door area protection device of hand sliding door household elevator

    Free access
    ZHANG JIAN | European Patent Office | 2023

    Novel baby carriage folding and stretching structure

    Free access
    ZHANG JIAN | European Patent Office | 2023

    Mobile device for medical query terminal and using method thereof

    Free access
    ZHANG JIAN | European Patent Office | 2021

    In-compartment armrest device forrail transit vehicle

    Free access
    ZHANG JIAN | European Patent Office | 2021

    Self-generating and self-cleaning lighting mechanism of new energy automobile

    Free access
    ZHANG JIAN | European Patent Office | 2022