David M. Bills

Person

  • Tulsa, OK, US

Patents Grantslast 30 patents

  • Information Patent Grant

    Material separator apparatus

    • Patent number 5,423,433
    • Issue date Jun 13, 1995
    • Osborn Engineering, Inc.
    • Robert G. Arnold
    • B03 - SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES O...