US PATENT SUBCLASS 430 / 149
.~.~ Liquid development, e.g., aqueous solution with coupler, etc.

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

141  DF  DIAZO REPRODUCTION, PROCESS, COMPOSITION, OR PRODUCT {7}
146  DF  .~ Diazo-type process, i.e., producing dye image by reacting the diazo or the imaged reaction product of the diazo {5}
149.~.~ Liquid development, e.g., aqueous solution with coupler, etc.

DEFINITION

Classification: 430/149

Liquid development, e.g., aqueous solution with coupler, etc.:

(under subclass 146) Processes wherein the dye image is formed by contacting the imaged medium with a liquid. Usually a positive azo dye image is obtained by reaction of the diazo compound with a coupler which may be in the medium or in the liquid.