Hellow guys, Welcome to my website, and you are watching [스타트업과 특허] 3. 선행기술 조사 방법. and this vIdeo is uploaded by 크리에이티브팩토리 x 프리즘스타트업위키 at 2017-05-28T05:50:45-07:00. We are pramote this video only for entertainment and educational perpose only. So, I hop you like our website.