| 400 / | HD | TYPEWRITING MACHINES |
| 383 | DF | TYPE-BAR-ACTION MECHANISM OR TYPE-FACE ON TYPE-BAR OR TYPE-FACE INKER {19} |
| 456 | DF | .~ Type-bar or type-member guide structure {5} |
| 460 | ![]() | .~.~ Guide adjacent print-point {2} |
| 460.1 | DF | .~.~.~> Including rollers or balls |
| 460.2 | DF | .~.~.~> Including pin or collar |