Nils Virving

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Hasselby, FI

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Patents Grantslast 30 patents

Information Patent Grant
Refining surface and a blade segment for a refiner
- Patent number 7,419,112
- Issue date Sep 2, 2008
- Metso Paper, Inc.
- Håkan Sjöström
- B02 - CRUSHING, PULVERISING, OR DISINTEGRATING PREPARATORY TREATMENT OF GRAIN...