| 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} | 
| 56 | DF | .~ Radiation-sensitive composition or product {10} | 
| 84 | DF | .~.~ Inorganic radiation conductive composition {4} | 
| 85 |  | .~.~.~ Alloy {1} | 
| 86 | DF | .~.~.~.~> Having more than two consituents |