Duane J. Zythkovicz

Person

  • Minneapolis, MN, US

Patents Grantslast 30 patents

  • Information Patent Grant

    Retraction device

    • Patent number 5,000,163
    • Issue date Mar 19, 1991
    • Surgical Dynamics, Inc.
    • Charles D. Ray
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE