| 347 / | HD | INCREMENTAL PRINTING OF SYMBOLIC INFORMATION |
| 111 | DF | ELECTRIC MARKING APPARATUS OR PROCESSES {3} |
| 112 | DF | .~ Electrostatic {8} |
| 115 | ![]() | .~.~ Multicolor {3} |
| 116 | DF | .~.~.~> Registration |
| 117 | DF | .~.~.~> Plural heads {1} |
| 119 | DF | .~.~.~> Single head using light as exposure means |