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Steven C. Jankowski

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  • Roscoe, IL, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Leak resistant plug valve
    • Patent number 5,311,900
    • Issue date May 17, 1994
    • Mueller Co.
    • Steven C. Jankowski
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Leak resistant plug valve
    • Patent number 5,232,009
    • Issue date Aug 3, 1993
    • Eclipse, Inc.
    • Steven C. Jankowski
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...