| 400 / | HD | TYPEWRITING MACHINES |
| 191 | DF | INCLUDING INTERPOSED INKING DEVICE (E.G., RIBBON) FOR RECORD-MEDIUM {15} |
| 211 | DF | .~ Including mechanism for shifting ribbon laterally at print-point {5} |
| 215 | DF | .~.~ By ribbon vibrator {5} |
| 215.1 | ![]() | .~.~.~ Including vibrator shiftable during use of nonfeed character key (e.g., for typing accent mark, etc.) |