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Martti Varis

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  • Leppavaara, SF
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Patents Grantslast 30 patents

  • Information Patent Grant

    Waste water valve
    • Patent number 4,057,076
    • Issue date Nov 8, 1977
    • Martti Varis
    • E03 - WATER SUPPLY SEWERAGE
  • Information Patent Grant

    Vacuum sewer valve
    • Patent number 3,984,080
    • Issue date Oct 5, 1976
    • Oy Wartsila Ab
    • Martti Varis
    • E03 - WATER SUPPLY SEWERAGE