| 430 / | HD | RADIATION IMAGERY CHEMISTRY: PROCESS, COMPOSITION, OR PRODUCT THEREOF | 
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| 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} | 
| 57.1 | DF | .~.~ Having plural conductive layers {2} | 
| 58.05 |  | .~.~.~ Charge transport layer {8} | 
| 58.1 | DF | .~.~.~.~> Inorganic charge transport layer | 
| 58.15 | DF | .~.~.~.~> Sulfur containing hetero ring in charge transport layer | 
| 58.2 | DF | .~.~.~.~> Organosilicon or organogermanium in charge transport layer | 
| 58.25 | DF | .~.~.~.~> Cyclic ketone, cyclodicyanomethylene, or cyclomethylenemalonate in charge transport layer | 
| 58.3 | DF | .~.~.~.~> Containing at least three aryl groups bonded to a single carbon atom in charge transport layer | 
| 58.35 | DF | .~.~.~.~> Organic nitrogen in charge transport layer {3} | 
| 59.1 | DF | .~.~.~.~> And specified charge generator layer {2} | 
| 59.6 | DF | .~.~.~.~> With specified binder resin in transport layer |