Herman J. J. M. Geurta

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Kerkrade, NL

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Patents Grantslast 30 patents

Information Patent Grant
Orthorhombic greenish-tinged lead chromate pigments
- Patent number 4,921,541
- Issue date May 1, 1990
- Ciba-Geigy Corporation
- Leonardus J. H. Erkens
- C01 - INORGANIC CHEMISTRY