| 430 / | HD | RADIATION IMAGERY CHEMISTRY: PROCESS, COMPOSITION, OR PRODUCT THEREOF | 
| 401 | DF | POST IMAGING PROCESSING {16} | 
| 423 |  | .~ Treating with processing composition after imaging prior to developing {3} | 
| 424 | DF | .~.~> Desensitizing | 
| 425 | DF | .~.~> Sensitizing | 
| 426 | DF | .~.~> Prehardening |