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    Contact switch, anti-extrusion device of movable operation table and high-altitude operation machine

    Free access
    GU JUNJIE / LONG YEGUO / XU YUNHAI et al. | European Patent Office | 2020

    ANTI-SQUEEZING DEVICE FOR MOBILE CONSOLE, PUSHER-TYPE ANTI-SQUEEZING DEVICE AND AERIAL WORK MACHINE

    Free access
    REN HUILI / ZHONG YI / XU YUNHAI et al. | European Patent Office | 2021

      ANTI-SQUEEZING DEVICE FOR MOBILE CONSOLE, PUSHER-TYPE ANTI-SQUEEZING DEVICE AND AERIAL WORK MACHINE

      Free access
      REN HUILI / ZHONG YI / XU YUNHAI et al. | European Patent Office | 2021

    ANTI-EXTRUSION DEVICE FOR MOVABLE OPERATING PLATFORM, PUSH-ROD-TYPE ANTI-EXTRUSION DEVICE, AND HIGH-ALTITUDE OPERATION MACHINE

    Free access
    REN HUILI / ZHONG YI / XU YUNHAI et al. | European Patent Office | 2023