Herbert Kallfass

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Cologne, DE

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Patents Grantslast 30 patents

Information Patent Grant
Propane-1,3-diphosphonic acids for conditioning water
- Patent number 4,246,103
- Issue date Jan 20, 1981
- Bayer Aktiengesellschaft
- Hans-Dieter Block
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...