TREA

Ralph A. Ball

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  • Jefferson, OH, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Alarm and method
    • Patent number 8,256,455
    • Issue date Sep 4, 2012
    • Ralph A. Ball
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Float valve and method
    • Patent number 7,802,587
    • Issue date Sep 28, 2010
    • Ralph A. Ball
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...