400 / | HD | TYPEWRITING MACHINES |
16 | FOR TYPING OR FORMING CONTINUOUS OR DISCONTINUOUS LINE (E.G., BY "LINER") {4} | |
17 | DF | .~> Including programmed-control-system |
18 | DF | .~> By scriber (e.g., pen, pencil, etc.) or with scriber guide {2} |
21 | DF | .~> Responsive to carriage movement |
22 | DF | .~> Underscoring concurrently with character imprinting |