Rayburn R. Anderson

Person

  • Wayzata, MN, US

Patents Grantslast 30 patents

  • Information Patent Grant

    Pozzolan blends

    • Patent number 5,223,035
    • Issue date Jun 29, 1993
    • Lafarage Canada Inc.
    • Donald S. Hopkins
    • C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES