US PATENT SUBCLASS 8 / 915
.~ Amino sulfonic acids

Current as of: June, 1999
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8 /   HD   BLEACHING AND DYEING; FLUID TREATMENT AND CHEMICAL MODIFICATION OF TEXTILES AND FIBERS

913  DF  AMPHOTERIC EMULSIFIERS FOR DYEING {2}
915.~ Amino sulfonic acids

DEFINITION

Classification: 8/915

Amino sulfonic acids:

(under subclass 913) Compositions containing amino sulfonic acids.