David T. Underwood

Person

  • Birmingham, AL, US

Patents Grantslast 30 patents

  • Information Patent Grant

    Lime slaker

    • Patent number 4,779,992
    • Issue date Oct 25, 1988
    • Dravo Corporation
    • David T. Underwood
    • C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES