Joel S. Graf

Person

  • Vadnais Heights, MN, US

Patents Grantslast 30 patents

  • Information Patent Grant

    Method and packaging for surgical masks

    • Patent number 5,615,767
    • Issue date Apr 1, 1997
    • Minnesota Mining and Manufacturing Company
    • Patricia A. Eull
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL