William Charles Downing

Person

  • Novelty, OH, US

Patents Grantslast 30 patents

  • Information Patent Grant

    Arc-welding power source

    • Patent number 3,984,654
    • Issue date Oct 5, 1976
    • The Lincoln Electric Company
    • Wayne Edwin Hoffman
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR