Ralph Kalkbrenner

Person

  • Pittsburgh, PA, US

Patents Grantslast 30 patents

  • Information Patent Grant

    Mechanic's creeper

    • Patent number D569572
    • Issue date May 20, 2008
    • Whiteside Mfg. Co.
    • George McConnell Davison, III
    • D34 - Material or article handling equipment