TREA

LaVern Allen Lawrence

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  • Sauk Rapids, MN, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Bi-directional valve seal mechanism
    • Patent number 6,045,121
    • Issue date Apr 4, 2000
    • General Signal Corporation
    • James Edward Barker
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Bi-directional valve seal mechanism
    • Patent number 5,865,422
    • Issue date Feb 2, 1999
    • General Signal Corporation
    • James Edward Barker
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...