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} |
160 | DF | .~ Imprint by pivoting of type-head-carrier and type-head against record-medium {7} |
161 | .~.~ Type-head-carrier movable on movable carriage {1} | |
161.1 | DF | .~.~.~> Including selection of type-face (e.g., on "golf ball" type-head) {2} |