Kawatetsu Techno-Construction Co., Ltd.

Organization

  • Tokyo, JP

Patents Grantslast 30 patents

  • Information Patent Grant

    Buried pipe laying method

    • Patent number 5,676,491
    • Issue date Oct 14, 1997
    • Kawasaki Steel Corporation
    • Tomoya Fujimoto
    • E21 - EARTH DRILLING MINING