1–20 of 48 hits
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    Thick wall piece optical structure of LED light source

    Free access
    PENG ZIHUI / YANG CHUN | European Patent Office | 2023

    Device for detecting damage to turntable bolts

    Free access
    KO JAE PIL / YANG CHUN HO | European Patent Office | 2020

    UNIVERSAL WHEEL

    Free access
    YANG CHUN-HSIANG / CHANG HSIU-FANG | European Patent Office | 2018