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Mothproofing compositions and their manufacture
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Azo dyestuffs and their manufacture
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Amino-acid amide derivatives and a process for their manufacture
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Thioacetalsulphonic acids and a process of making same
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2-naphtholsulphonic acids and their manufacture
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Rubber composition and its manufacture
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Copper compounds of primary resorcinol trisazo-dyestuffs and their manufacture
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Sulphonated indole derivatives and a process of their manufacture
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Mothproofing composition
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Azo dyestuffs and their manufacture
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Monoazo-dyestuffs and their manufacture
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Amino-acid derivatives and their manufacture
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Amino-acid derivatives and their manufacture
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Manufacture of colored lacquers and coating compositions
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Water-insoluble monoazodyestuffs and their production
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Tanning animal hides
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Monoazo-dyestuffs and their production
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Manufacture of water soluble condensation products of phenolurea-formaldehyde
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Production of dyeing conversion products of azo-dyestuffs
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US1974889A
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Preparation of hides or skins for tanning
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