John R. Washington

Person

  • Warrior, AL, US

Patents Grantslast 30 patents

  • Information Patent Grant

    Pipe gauging and rounding apparatus and method

    • Patent number 6,490,900
    • Issue date Dec 10, 2002
    • American Cast Iron Pipe Company
    • Gene L. Oliver
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...