Alfons Schulte-Schulze Berndt

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Essen, DE

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Patents Grantslast 30 patents

Information Patent Grant
Process for obtaining nitrogen from air or nitrogen-containing gase...
- Patent number 5,275,640
- Issue date Jan 4, 1994
- Bergwerksverband GmbH
- Hans J. Schroter
- C01 - INORGANIC CHEMISTRY