Dennis E. Collins

Person

  • Knoxville, TN, US

Patents Grantslast 30 patents

  • Information Patent Grant

    Automatic drain valve

    • Patent number 5,983,919
    • Issue date Nov 16, 1999
    • Drain-All, Inc.
    • Lester V. Ottinger
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...