J urg Widmer

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Z urich, CH

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Patents Grantslast 30 patents

Information Patent Grant
Water-soluble copolymers of vinylacetate and maleamic acids and use...
- Patent number 5,633,310
- Issue date May 27, 1997
- Sika AG, vorm. Kaspar Winkler & Co.
- Ueli Sulser
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES