Pekka Ruokolainen

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Savonlinna, FI

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Patents Grantslast 30 patents

Information Patent Grant
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- Patent number 4,396,161
- Issue date Aug 2, 1983
- Enso-Gutzeit Osakeyhtio
- Pekka Ruokolainen
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE