James D. Hammer

Person

  • Quincy, MA, US

Patents Grantslast 30 patents

  • Information Patent Grant

    Color change nipple

    • Patent number 5,322,031
    • Issue date Jun 21, 1994
    • Safety 1st, Inc.
    • Michael I. Lerner
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE