US PATENT SUBCLASS 8 / 927
.~ Polyacrylonitrile fiber

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

920  DF  SYNTHETIC FIBER DYEING {6}
927.~ Polyacrylonitrile fiber

DEFINITION

Classification: 8/927

Polyacrylonitrile fiber:

(under subclass 920) Subject matter involving dyeing of polyacrylonitrile fiber.