TREA

David F. Thomas

Follow

Person

  • West St. Paul, MN, US
People

Patents Grantslast 30 patents

  • Information Patent Grant

    Transfer valve
    • Patent number 4,173,234
    • Issue date Nov 6, 1979
    • Waterous Company
    • David F. Thomas
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Pump pressure control device
    • Patent number 3,997,282
    • Issue date Dec 14, 1976
    • Waterous Company
    • David F. Thomas
    • G05 - CONTROLLING REGULATING
  • Information Patent Grant

    Fire hydrant valve rod coupling
    • Patent number 3,961,642
    • Issue date Jun 8, 1976
    • Waterous Company
    • David F. Thomas
    • E03 - WATER SUPPLY SEWERAGE