Anna-Kaisa Kontturi

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Kerava, FI

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Patents Grantslast 30 patents

Information Patent Grant
Process for recovering lignosulfonates from spent sulfite liquor
- Patent number 4,336,189
- Issue date Jun 22, 1982
- Oy Tampella AB
- Sirpa L. Hamala
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...