Martti Salmivaara

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Littoinen, FI

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Patents Grantslast 30 patents

Information Patent Grant
Method for resisting formation of undulations in a fiber/water mixt...
- Patent number 4,892,622
- Issue date Jan 9, 1990
- Valmet Oy
- Raimo Malkki
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Apparatus in a drying section of a paper machine
- Patent number 4,628,618
- Issue date Dec 16, 1986
- Valmet Oy
- Raimo Virta
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE