W. Matthew Duffield, JR.

Person

  • Kearney, MO, US

Patents Applicationslast 30 patents

  • Information Patent Application

    Penetrator And Method Of Manufacture Same

    • Publication number 20120067198
    • Publication date Mar 22, 2012
    • ADF LLC
    • David M. Rose
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...