TREA

Steven E. Margison

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  • Downers Grove, IL, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Ultrasonic level detector
    • Patent number 5,131,271
    • Issue date Jul 21, 1992
    • Magnetrol International, Inc.
    • Kevin M. Haynes
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Point level switch
    • Patent number 5,121,632
    • Issue date Jun 16, 1992
    • Magnetrol International, Incorporated
    • Manley S. Keeler
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Data entry terminal and memory module therefor
    • Patent number 4,682,958
    • Issue date Jul 28, 1987
    • Nuvatec, Inc.
    • William H. Slavik
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS