Francis R. Wallace

Person

  • Indian Orchard, MA, US

Patents Grantslast 30 patents

  • Information Patent Grant

    Stepped drill construction

    • Patent number 4,582,458
    • Issue date Apr 15, 1986
    • American Saw & Mfg. Company
    • William B. Korb
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR