Robert B. Heffernan

Person

  • Pittsburgh, PA, US

Patents Grantslast 30 patents

  • Information Patent Grant

    Lift ramp

    • Patent number 8,161,589
    • Issue date Apr 24, 2012
    • Robert B. Heffernan
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL