Hellow guys, Welcome to my website, and you are watching 알기 쉬운 지식재산권-특허권, 실용신안권 등 (중등). and this vIdeo is uploaded by 서울특별시교육청TV at 2022-03-16T23:50:19-07:00. We are pramote this video only for entertainment and educational perpose only. So, I hop you like our website.
