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Patents Grantslast 30 patents

Information Patent Grant
Apparatus for preparing high-concentration alkali
- Patent number 4,927,494
- Issue date May 22, 1990
- Sulzer-Escher Wyss AG
- Robert Winkler
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Method and apparatus for preparing high-concentration alkali
- Patent number 4,830,707
- Issue date May 16, 1989
- Sulzer-Escher Wyss AG
- Robert Winkler
- C01 - INORGANIC CHEMISTRY