Country of registration대한민국
inventor정종욱, 김성조, 전현식, 허태회, 송기덕, Byung Chul Park, 윤철희, 황은미
registration number10 2017 0121648
registration date2017.09.21.
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Country of registration대한민국
inventor유승일, 이재구, 백삼열, Byung Chul Park, 윤철희
registration number10 2017 0140386
registration date2017.10.26.
file
Country of registration대한민국
inventor유승일, 이재구, 백삼열, Byung Chul Park, 윤철희
registration number10 2018 0024031
registration date2018.03.08.
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