English | German | |
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Patent | ||
Patent | 2 nitrogen atoms | 2 Stickstoffatome |
Patent | 2 nitrogen atoms | 2 Stickstoffatomen |
English | German | |
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Patent | ||
Patent | heterocyclic compounds with 2 nitrogen atoms and m | Heterocyclen mit 2 Stickstoffatomen und mehr als s |