David L. Witham

Person

  • Huntington Beach, CA, US

Patents Grantslast 30 patents

  • Information Patent Grant

    Stove burner simmer control

    • Patent number 5,575,638
    • Issue date Nov 19, 1996
    • Thermador Corporation
    • David L. Witham
    • F24 - HEATING RANGES VENTILATING