Knut P. Kringstad

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Vallingby, SW

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Patents Grantslast 30 patents

Information Patent Grant
Method of increasing cellulosic pulp yields in an alkaline digestio...
- Patent number 3,937,647
- Issue date Feb 10, 1976
- Svenska Traforskningsinstitutet
- Inga L. Backstrom
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE