TREA

Göran Sjöstedt

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  • Orebro, SE
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Patents Grantslast 30 patents

  • Information Patent Grant

    Controlled expansion of rock bolt
    • Patent number 7,320,560
    • Issue date Jan 22, 2008
    • Atlas Copco Rock Drills AB
    • Tommy Persson
    • E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

  • Information Patent Application

    Controlled expansion of rock bolt
    • Publication number 20070036614
    • Publication date Feb 15, 2007
    • ATLAS COPCO ROCK DRILLS AB
    • Tommy Persson
    • E21 - EARTH DRILLING MINING