TREA

Jefferson J. Springston

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  • Pasadena, MD, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Water pumping device
    • Patent number 4,302,162
    • Issue date Nov 24, 1981
    • Lipman Electric Company, Inc.
    • Jefferson J. Springston
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Water pumping device
    • Patent number 4,247,261
    • Issue date Jan 27, 1981
    • Lipman Electric Company, Inc.
    • Jefferson J. Springston
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING