Juhani Ovaska

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Jyvaskyla, FI

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Patents Grantslast 30 patents

Information Patent Grant
Apparatus for driving a rotatable mantle mounted on a fixed axle
- Patent number 4,402,233
- Issue date Sep 6, 1983
- Valmet Oy
- Pentti Toivonen
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Roll drive for paper machines and the like
- Patent number 4,103,565
- Issue date Aug 1, 1978
- Valmet Oy
- Martti Matikainen
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE