Dorota Grzelak

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Warsaw, PL

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Patents Grantslast 30 patents

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Compositions of polyphenylene oxide or of mixtures of polyphenylene...
- Patent number 4,687,799
- Issue date Aug 18, 1987
- Enichem, S.p.A.
- Wanda Kosinska
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...