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    LEE KI JONG / JEON SOUNG WOO / BEOMSIK SHIN et al. | European Patent Office | 2023

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    GU JAE HEON | European Patent Office | 2017

    1 1-cell type traffic light device using multi-color LED

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    JUNG WON HYOUNG | European Patent Office | 2023

    2 Highway Secondary Collision Prevention System

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    PARK JONG CHURN | European Patent Office | 2019

    2 LED Street lamp having secondary traffic accident prevention system

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    HAN MYOUNG IL | European Patent Office | 2020

    2 METHOD FOR SECONDARY ACCIDENT PREVENTION BASED ON MAGNETIC INDUCTION PRINCIPLE GUARD RAIL

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    OH YONG WOO / YUN TAE GYEONG / DYU ALEKSANDR | European Patent Office | 2021

    2 SMART ELECTRIC SIGN FOR PROTECING SECONDARY ACCIDENT

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    KIM YOUN SOON / SUAL DONG YOUAL | European Patent Office | 2022

    2 Smart streetlight for a secondary accident prevention

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    HAN MOON IL / OH SEUNG HYUN | European Patent Office | 2019

    2 Warning System for Preventing Secondary Collision on Expressway

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    JEON JAE PIL / KIM HAN SUNG | European Patent Office | 2019

      2 Warning System for Preventing Secondary Collision on Expressway

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      JEON JAE PIL / KIM HAN SUNG | European Patent Office | 2019

    3 4 INTEGRATED DIAGONAL CROSSWALK FOR THREE-WAY AND FOUR-WAY CROSSROAD

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    SEO YEONG JIN | European Patent Office | 2024

    5G communication intelligent street lamp

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    SUN YIYUAN / ZHAO TI / HU BIN et al. | European Patent Office | 2021

    5 Traffic guide apparatus for multi traffic lane

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    PARK YI YONG | European Patent Office | 2023

    A access control system for flooding expectation area

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    AHN CHOUNG YUL / AHN TAE HYOUNG | European Patent Office | 2022