Kenneth L. Bontrager

Person

  • Jefferson County, CO, US

Patents Grantslast 30 patents

  • Information Patent Grant

    Apparatus for making cellulose insulation

    • Patent number 4,191,224
    • Issue date Mar 4, 1980
    • Diamond Insulation Industries, Inc.
    • Kenneth L. Bontrager
    • C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES