Markku Tanttu

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Varkaus, FI

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Patents Grantslast 30 patents

Information Patent Grant
Disrupting the flow from the smelt spout of a recovery boiler
- Patent number 5,976,319
- Issue date Nov 2, 1999
- Ahlstrom Machinery Oy
- Raimo Paju
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Apparatus for treating black liquor
- Patent number 5,405,502
- Issue date Apr 11, 1995
- A. Ahlstrom Corporation
- Kari Palmu
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE