US PATENT SUBCLASS 430 / 461
.~ Bleach or intensification

Current as of: June, 1999
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430 /   HD   RADIATION IMAGERY CHEMISTRY: PROCESS, COMPOSITION, OR PRODUCT THEREOF

449  DF  NONRADIATION SENSITIVE IMAGE PROCESSING COMPOSITIONS OR PROCESS OF MAKING {7}
461.~ Bleach or intensification {1}
462  DF  .~.~> Dye bleach for color image

DEFINITION

Classification: 430/461

Bleach or intensification:

(under subclass 449) Compositions which either reduce or increase the density of the image.

SEE OR SEARCH CLASS

252, Compositions,

186.1+, for oxidative bleaches; and subclasses 188.1+ for reductive bleaches of general utility.