| 400 / | HD | TYPEWRITING MACHINES |
| 283 | DF | CARRIAGE OR CARRIAGE-MOVING OR MOVEMENT-REGULATING MECHANISM {11} |
| 284 | DF | .~ For stopping carriage in tabular position (e.g., column-set positions) {10} |
| 294 | DF | .~.~ Stop-setting or stop-clearing mechanism {7} |
| 296 | DF | .~.~.~ Stop setting by movement of tab-rack {2} |
| 296.1 | ![]() | .~.~.~.~ Tab-rack rotates about its axis |