TREA

Christian O. Nelson

Follow

Person

  • Hillsboro, OR, US
People

Patents Grantslast 30 patents

  • Information Patent Grant

    Underground access conduit
    • Patent number 6,354,325
    • Issue date Mar 12, 2002
    • 3 Dimensional Contracting, Inc.
    • Kenneth F. Warnes
    • E03 - WATER SUPPLY SEWERAGE