Richard J. Hack

Person

  • Wilmington, DE, US

Patents Grantslast 30 patents

  • Information Patent Grant

    Device for controlling ectoparasites

    • Patent number 4,606,478
    • Issue date Aug 19, 1986
    • NOR-AM Chemical Company
    • Richard J. Hack
    • A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING