Rauma-Rapola Oy

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Patents Grantslast 30 patents

Information Patent Grant
Process for the preparation of a sodium sulphite containing liquor
- Patent number 4,481,074
- Issue date Nov 6, 1984
- Rauma-Rapola Oy
- Ismo Reilama
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Method for filtering a fibrous material by means of a disc filter a...
- Patent number 4,136,028
- Issue date Jan 23, 1979
- Rauma-Rapola Oy
- Martti Toivonen
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE

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