Hellow guys, Welcome to my website, and you are watching 세계 5대 특허청! 특허청 TOP5가 한자리에?!. and this vIdeo is uploaded by 대한민국 특허청 at 2020-03-09T00:00:05-07:00. We are pramote this video only for entertainment and educational perpose only. So, I hop you like our website.
