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Hans W. Hammen
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Solingen, DE
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Patent Grant
Dust-free quinoxaline 1,4-di-N-oxides
Patent number
4,636,503
Issue date
Jan 13, 1987
Bayer Aktiengesellschaft
Hans W. Hammen
A23 - FOODS OR FOODSTUFFS THEIR TREATMENT, NOT COVERED BY OTHER CLASSES