C - Chemistry – Metallurgy – 09 – B
Inventor
C - Chemistry, Metallurgy
09
B
Inventor
Acid amide derivatives of azo-dyestuffs containing benzoic...
Azomethine pigments and processes for their manufacture
Dioxazine dyestuffs
Dioxazine dyestuffs
Dyestuffs of the naphthofurandione series
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