US PATENT SUBCLASS 430 / 456
.~.~ And developer

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}
455  DF  .~ Fixer {4}
456.~.~ And developer {1}
457  DF  .~.~.~> Forming dye image

DEFINITION

Classification: 430/456

And developer:

(under subclass 455) Compositions for rendering the image visible and making same permanent.