John M. Seminew

Person

  • Perrysburg, OH, US

Patents Grantslast 30 patents

  • Information Patent Grant

    Transition beam forming section for tube mill

    • Patent number 5,865,053
    • Issue date Feb 2, 1999
    • Abbey-Etna Machine Company
    • Nelson D. Abbey
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...