430 / | HD | RADIATION IMAGERY CHEMISTRY: PROCESS, COMPOSITION, OR PRODUCT THEREOF |
31 | DF | ELECTRIC OR MAGNETIC IMAGERY, E.G., XEROGRAPHY, ELECTROGRAPHY, MAGNETOGRAPHY, ETC., PROCESS, COMPOSITION, OR PRODUCT {18} |
97 | DF | .~ Post imaging process, finishing, or perfecting composition or product {12} |
104 | DF | .~.~ Finishing or perfecting composition or product {1} |
105 | DF | .~.~.~ Developing composition or product {4} |
106.6 | .~.~.~.~ Magnetic or iron-containing component |