| 400 / | HD | TYPEWRITING MACHINES | 
| 139 | DF | INCLUDING TYPE-SET-ASSEMBLAGE MOUNTED ON CARRIER AND RELATIVELY MOVABLE FOR SELECTION AND FOR IMPACT OF TYPE-FACE {11} | 
| 153 | DF | .~ Imprint by movement of record-medium against type-face {3} | 
| 154 | DF | .~.~ By hammer impacting record-medium against type-face on type-head (e.g., type shuttle, etc.) {3} | 
| 154.1 | DF | .~.~.~ Including selection of type-face {8} | 
| 154.2 |  | .~.~.~.~ Via pulley and cord arrangement (e.g., summing displacements) |