Billy R. Walker

Person

  • Daleville, IN, US

Patents Grantslast 30 patents

  • Information Patent Grant

    Cold forming dies and cold forming process

    • Patent number 4,945,749
    • Issue date Aug 7, 1990
    • General Motors Corporation
    • Billy R. Walker
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...