C | Sektion C — Chemie; Hüttenwesen | CHEMISTRY; METALLURGY | |||||
C05 | Düngemittel; deren Herstellung [4] | FERTILISERS; MANUFACTURE THEREOF [4] | |||||
C05B | Phosphatische Düngemittel | PHOSPHATIC FERTILISERS | |||||
C05B 13/00 | Durch Glühverfahren aus phosphatischen Stoffen hergestellte Düngemittel [1, 2006.01] | Fertilisers produced by pyrogenic processes from phosphatic materials [1, 2006.01] | |||||
C05B 13/02 |
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