Douglas J. Sykora

Person

  • Amery, WI, US

Patents Grantslast 30 patents

  • Information Patent Grant

    Punch apparatus

    • Patent number 5,269,213
    • Issue date Dec 14, 1993
    • International Business Machines Corporation
    • Anthony F. Coneski
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...