TREA

Alpo Ojala

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Patents Grantslast 30 patents

  • Information Patent Grant

    Washer
    • Patent number 5,460,019
    • Issue date Oct 24, 1995
    • Sunds Defibrator Pori Oy
    • Alpo Ojala
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    Drum washer
    • Patent number 5,421,176
    • Issue date Jun 6, 1995
    • Sunds Defibrator Pori Oy
    • Alpo Ojala
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE