Risto Hakulinen

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Kiskotie, FI

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Patents Grantslast 30 patents

Information Patent Grant
Procedure for purifying effluent waters, particularly those produce...
- Patent number 4,461,708
- Issue date Jul 24, 1984
- Enso-Gutzeit OY
- Risto Hakulinen
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE