Oy Suomen Vanutehdas - Finwad Ltd.

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Pre-tearing device for dry plates of wood pulp
- Patent number 3,938,746
- Issue date Feb 17, 1976
- Oy Suomen Vanutehdas - Finwad Ltd.
- Gunnar Nordgren
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE

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