TREA

David E. Robertson

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  • Covina, CA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Rotary drive sprinkler
    • Patent number 4,787,558
    • Issue date Nov 29, 1988
    • Rain Bird Consumer Products Mfg. Corp.
    • Timothy C. Sexton
    • B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
  • Information Patent Grant

    Rotating stream nozzle
    • Patent number 4,781,328
    • Issue date Nov 1, 1988
    • Rain Bird Consumer Mfg. Corp.
    • David E. Robertson
    • B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
  • Information Patent Grant

    Rotary drive sprinkler
    • Patent number 4,625,914
    • Issue date Dec 2, 1986
    • Rain Bird Consumer Products Mfg. Corp.
    • Timothy C. Sexton
    • B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...