Paavo J. Valkama

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68610 Leppaluoto, FI

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Patents Grantslast 30 patents

Information Patent Grant
Method of operating a paper machine, particularly a press section t...
- Patent number 4,225,384
- Issue date Sep 30, 1980
- Oy Wilh. Schauman Ab
- Paavo J. Valkama
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Press section of a paper machine
- Patent number 4,219,383
- Issue date Aug 26, 1980
- Paavo J. Valkama
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Intermediate press nip of a paper machine press section
- Patent number 4,192,713
- Issue date Mar 11, 1980
- Paavo J. Valkama
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE