TREA

Nils I. Aarthun

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  • Partille, SE
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Patents Grantslast 30 patents

  • Information Patent Grant

    Valve
    • Patent number D328945
    • Issue date Aug 25, 1992
    • Nils I. Aarthun
    • D23 - Environmental heating and cooling
  • Information Patent Grant

    Valve actuator
    • Patent number D322657
    • Issue date Dec 24, 1991
    • Nils I. Aarthun
    • D23 - Environmental heating and cooling
  • Information Patent Grant

    Valve device
    • Patent number 4,819,691
    • Issue date Apr 11, 1989
    • Steridose Systems AB
    • Peter Lofgren
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...