Robert T. Jefferson

Person

  • Crothersvill, IN, US

Patents Grantslast 30 patents

  • Information Patent Grant

    Seal construction

    • Patent number 4,275,889
    • Issue date Jun 30, 1981
    • Cummins Engine Company, Inc.
    • Gordon K. Butler
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...