Sung Yong Joo

Person

  • Kyonggi-Do, KR

Patents Grantslast 30 patents

  • Information Patent Grant

    Golf tee structure

    • Patent number 6,679,793
    • Issue date Jan 20, 2004
    • Sung Yong Joo
    • A63 - SPORTS GAMES AMUSEMENTS

Patents Applicationslast 30 patents

  • Information Patent Application

    Structure: of tee for golf

    • Publication number 20020123396
    • Publication date Sep 5, 2002
    • Sung Yong Joo
    • A63 - SPORTS GAMES AMUSEMENTS