1–8 of 8 hits
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    Portable electronic device and operating method therefor

    Free access
    SUN CHANGWEI / LI KUN / CHEN JIEHUA | European Patent Office | 2020

    PORTABLE ELECTRONIC DEVICE AND OPERATING METHOD THEREFOR

    Free access
    SUN CHANGWEI / LI KUN / CHEN JIEHUA | European Patent Office | 2019

    PORTABLE ELECTRONIC DEVICE AND OPERATING METHOD THEREFOR

    Free access
    SUN CHANGWEI / LI KUN / CHEN JIEHUA | European Patent Office | 2018

    Portable electronic device and method thereof

    Free access
    SUN CHANGWEI / LI KUN / CHEN JIEHUA | European Patent Office | 2016

    Portable electronic device and operating method therefor

    Free access
    SUN CHANGWEI / LI KUN / CHEN JIEHUA | European Patent Office | 2018

    Fabricated subway maintenance platform and construction method

    Free access
    LUO YUWEI / LI WENSHENG / LEI ZHIHUI et al. | European Patent Office | 2023

    Landing leg rotating device of crawler-type amphibious self-elevating exploration platform

    Free access
    CHEN LIANG / CHEN JIEHUA / WANG ZHANG et al. | European Patent Office | 2023

    Transportation device for equipment going up and down stairs

    Free access
    WEN MIN / ZHAN HAIHONG / CHEN JIEHUA et al. | European Patent Office | 2023