| 400 / | HD | TYPEWRITING MACHINES |
| 283 | DF | CARRIAGE OR CARRIAGE-MOVING OR MOVEMENT-REGULATING MECHANISM {11} |
| 352 | DF | .~ Carriage, per se, or guideway therefor {2} |
| 354 | DF | .~.~ Guideway or bearings for carriage {1} |
| 354.1 | DF | .~.~.~ Guideway cooperating with ball bearings or roller bearings {2} |
| 354.2 | ![]() | .~.~.~.~ Including bearing holder geared to carriage |