|
US2391137A
|
|
Monoazo hetero-oxygen compounds
|
|
US2384734A
|
|
Mixtures of azo dyestuffs
|
|
US2408961A
|
|
Trisazo metallizable dyestuffs
|
|
US2398367A
|
|
Azo-dyestuffs
|
|
US2374880A
|
|
Methine dyestuffs
|
|
US2399066A
|
|
Heterocyclic stilbene azo dyestuffs
|
|
US2435356A
|
|
Trisazo urea dyestuffs
|
|
US2383089A
|
|
Device for the construction of tight flange joints in lined apparatus
|
|
US2341791A
|
|
Yellow disazo dyestuffs
|
|
US2396659A
|
|
Metallizable triazine azo compounds
|
|
US2391164A
|
|
Metallizable triazine azo dyestuffs
|
|
US2301333A
|
|
Metalizable azo dyestuffs
|
|
US2283327A
|
|
Azo dyestuffs
|
|
US2283326A
|
|
Yellow azo dyestuffs
|
|
US2305691A
|
|
Anthraquinone dyestuff preparation
|
|
US2317756A
|
|
Process for improving materials containing cellulose
|
|
US2305690A
|
|
Anthraquinone derivatives and process of making same
|
|
US2268935A
|
|
Dyestuffs of the triazol series and process of making same
|
|
US2283261A
|
|
Yellow azo dyestuffs
|
|
US2342191A
|
|
Dyeing and printing cellulose esters and ethers with amino-anthraquinone dyes
|
