David E. Butterworth

Person

  • Colleyvile, TX, US

Patents Grantslast 30 patents

  • Information Patent Grant

    Debridement sponge

    • Patent number 5,648,141
    • Issue date Jul 15, 1997
    • Chicopee
    • David E. Butterworth
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE