MANHOLE REPAIR DEVICE AND MANHOLE REPAIR METHOD USING THAT
HONG SUNG WON, BACK MYEONG HO, JI HYEONG GU, KIM JUNG SU, KIM HYUN JOUNG, LEE HEE SEUNG, KIM NAM GYU, KIM DU WON, LEEM GEON TAE
Year of Publication 20.02.2020
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Year of Publication 20.02.2020
Patent
REPAIR FRAME FOR MANHOLE AND METHOD OF MANHOLE REPAIR USING IT
HONG SUNG WON, BACK MYEONG HO, JI HYEONG GU, KIM JUNG SU, KIM HYUN JOUNG, LEE HEE SEUNG, KIM NAM GYU, KIM DU WON, LEEM GEON TAE
Year of Publication 06.01.2020
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Year of Publication 06.01.2020
Patent
ANTI-SLIP WHEEL AND IMAGING DEVICE THEREWITH FOR UNDER GROUND STRUCTURE
HONG SUNG WON, BACK MYEONG HO, JI HYEONG GU, KIM JUNG SU, KIM HYUN JOUNG, LEE HEE SEUNG, KIM NAM GYU, KIM DU WON, LEEM GEON TAE
Year of Publication 19.11.2019
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Year of Publication 19.11.2019
Patent