Jeffrey A. Siebert

Person

  • Manitou Springs, CO, US

Patents Grantslast 30 patents

  • Information Patent Grant

    Tube bending mandrel

    • Patent number 6,085,572
    • Issue date Jul 11, 2000
    • Tube Bending Cocepts, Inc.
    • Samuel B. McGuire
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...