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Joseph R. Humphrey

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  • Middletown, KY, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Compressor piston rod packing ring set
    • Patent number 6,286,837
    • Issue date Sep 11, 2001
    • Delaware Capital Formation, Inc.
    • Joseph R. Humphrey
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...