David L. Frey

Person

  • Harveysburg, OH, US

Patents Grantslast 30 patents

  • Information Patent Grant

    Material handling system

    • Patent number 5,560,309
    • Issue date Oct 1, 1996
    • MIM Industries, Inc.
    • Ralph F. Conley
    • D05 - SEWING EMBROIDERING TUFTING