1–10 of 368 hits
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    Detachable unmanned aerial vehicle bomb throwing platform device

    Free access
    ZHANG LANYONG / LIU LEI / ZHANG LEI | European Patent Office | 2020

    Train control system and method, electronic equipment and storage medium

    Free access
    LIU HEYE / ZHANG LEI / LIU YANGFAN | European Patent Office | 2023

    Elevator system

    Free access
    LIU WENJIN / ZHANG LEI / LIU TAO | European Patent Office | 2020

    Oil supplementing method of power transformer and expander lifting device thereof

    Free access
    LIU XIAOXIA / ZHANG LEI | European Patent Office | 2023

    Protection device for preventing accidental movement of lift car

    Free access
    LIU WENJIN / ZHANG LEI / LIU TAO | European Patent Office | 2020

    Dragging type real-time communication device of underwater portable/mobile intelligent terminal

    Free access
    LIU SONGDONG / ZHANG LEI | European Patent Office | 2020

    Sound insulation and heat insulation pad of automobile and production process thereof

    Free access
    LIU JUAN / ZHANG LEI / WANG LEI et al. | European Patent Office | 2015

    STAIR CLEANING ROBOT BASED ON RETRACTABLE ROTATING ARMS

    Free access
    ZHANG LEI / SHAO JIANGEN / SU LEI et al. | European Patent Office | 2023

    Commercial vehicle fan control method and system

    Free access
    SHI LEI / ZHANG LEI / LIU YAN et al. | European Patent Office | 2021

    Cantilever crane telescopic tower crane with attachment mechanism and working method thereof

    Free access
    LIU CHENGQIANG / LUO NIANNING / SUN TAO et al. | European Patent Office | 2020