TREA

Sung Gyo Chung

Follow

Person

  • Busan, KR
People

Patents Grantslast 30 patents

  • Information Patent Grant

    Oil-pressure type fixed piston sampler
    • Patent number 8,820,401
    • Issue date Sep 2, 2014
    • Dong-A University Research Foundation for Industry-Academy Cooperation
    • Sung Gyo Chung
    • E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents