1–3 of 3 hits
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    Horseshoe-shaped lock

    Free access
    YANG ZHONGJIE / XIA YIPING / WANG YANG et al. | European Patent Office | 2019

      HORSESHOE-SHAPED LOCK

      Free access
      YANG ZHONGJIE / XIA YIPING / WANG YANG et al. | European Patent Office | 2018

    U-SHAPED LOCK

    Free access
    YANG ZHONGJIE / XIA YIPING / WANG YANG et al. | European Patent Office | 2020

    U U-SHAPED LOCK

    Free access
    YANG ZHONGJIE / XIA YIPING / WANG YANG et al. | European Patent Office | 2018