TREA

Thorvald Haldin

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Patents Grantslast 30 patents

  • Information Patent Grant

    Pressure compensator
    • Patent number 8,549,924
    • Issue date Oct 8, 2013
    • ABB Technology AG
    • Esa Virtanen
    • E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

  • Information Patent Application

    PRESSURE COMPENSATOR
    • Publication number 20110203379
    • Publication date Aug 25, 2011
    • ABB TECHNOLOGY AG
    • Esa VIRTANEN
    • E21 - EARTH DRILLING MINING