1–5 von 5 Ergebnissen
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    Front-loading bicycle frame

    Freier Zugriff
    CHEN YINGJIE / LI HONGSONG | Europäisches Patentamt | 2021

    Frame locking mechanism for folding and unfolding limiting

    Freier Zugriff
    ZHAO RONGJUN / CHEN YINGJIE / LI HONGSONG | Europäisches Patentamt | 2021

    Convenient-to-fold scooter for old people

    Freier Zugriff
    ZHAO RONGJUN / CHEN YINGJIE / LI HONGSONG | Europäisches Patentamt | 2021

    Bicycle saddle with inflating function

    Freier Zugriff
    LI HONGSONG / CHEN YINGJIE / WANG HONGBING | Europäisches Patentamt | 2022

    Bicycle based on self-adaptive speed change mechanism

    Freier Zugriff
    LIU KAI / LIU HUALI / LI HONGSONG et al. | Europäisches Patentamt | 2024