| 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} |
| 75 | DF | .~.~ Radiation-conductive composition contains hetero ring {1} |
| 76 | DF | .~.~.~ The hetero ring has at least nitrogen as a ring hetero atom {2} |
| 78 | DF | .~.~.~.~ Polycyclo ring system having the hetero ring as one of the cyclo systems {1} |
| 79 |  | .~.~.~.~.~ Carbazole {2} |
| 80 | DF | .~.~.~.~.~.~> Polymer or synthetic resin only |
| 81 | DF | .~.~.~.~.~.~> Sensitized or doped {1} |