Heinrich Hahn

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Gelsenkirchen-Buer, DE

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Patents Grantslast 30 patents

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Process for the production of NPK fertilizers resistant to smolderi...
- Patent number 4,331,465
- Issue date May 25, 1982
- Chemische Werke Huls Aktiengesellschaft
- Heinrich Hahn
- C05 - FERTILISERS MANUFACTURE THEREOF