TREA

Robert L. Shields

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  • Miltona, MN, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Hand aerator
    • Patent number 5,088,562
    • Issue date Feb 18, 1992
    • Robert L. Shields
    • A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
  • Information Patent Grant

    Sod cutter
    • Patent number 4,982,800
    • Issue date Jan 8, 1991
    • Robert L. Shields
    • A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
  • Information Patent Grant

    Hexagon turf plugger
    • Patent number 4,966,238
    • Issue date Oct 30, 1990
    • Robert L. Shields
    • A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
  • Information Patent Grant

    Sod cutter
    • Patent number 4,934,464
    • Issue date Jun 19, 1990
    • Robert L. Shields
    • A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING