TREA

Aspervall Instrument AB

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Patents Grantslast 30 patents

  • Information Patent Grant

    Pneumatic servo valve (governing valve)
    • Patent number 4,669,358
    • Issue date Jun 2, 1987
    • Computer Instrument AB
    • Roland Aspervall
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...