US PATENT SUBCLASS 430 / 451
.~ Hardener

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}
451.~ Hardener {2}
452  DF  .~.~> Develop-harden
453  DF  .~.~> Fix-harden

DEFINITION

Classification: 430/451

Hardener:

(under subclass 449) Compositions containing an ingredient intended to harden the radiation sensitive product.

SEE OR SEARCH CLASS

260, Chemistry of Carbon Compounds,

117, to harden gelatin, per se.