Thomas H. Wall

Person

  • St. Paul, MN, US

Patents Grantslast 30 patents

  • Information Patent Grant

    Evaporative humidifier

    • Patent number 4,225,542
    • Issue date Sep 30, 1980
    • Minnesota Mining and Manufacturing Company
    • Thomas H. Wall
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE