TREA

Hannu Virta

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  • Turku, FI
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Patents Grantslast 30 patents

  • Information Patent Grant

    Room unit for marine structure
    • Patent number 4,722,154
    • Issue date Feb 2, 1988
    • Oy Wartsila AB
    • Hannu Virta
    • B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT
  • Information Patent Grant

    Cabin element system for ships
    • Patent number 4,528,928
    • Issue date Jul 16, 1985
    • Oy Wartsila AB
    • Hannu Virta
    • B60 - VEHICLES IN GENERAL