Stephan van Tapavizca

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Erkrath, DE

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Patents Grantslast 30 patents

Information Patent Grant
Water-based drilling and well-servicing fluids with swellable, synt...
- Patent number 4,888,120
- Issue date Dec 19, 1989
- Henkel Kommanditgesellschaft auf Aktien
- Heinz Mueller
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...