Jonn W. Hill

Person

  • Powell, OH, US

Patents Grantslast 30 patents

  • Information Patent Grant

    Plug aerator

    • Patent number 6,675,905
    • Issue date Jan 13, 2004
    • Ohio Steel Industries, Inc.
    • Jonn W. Hill
    • A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING