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} |
140 | DF | .~ Including type-faces movable relative to type-face-carrier {5} |
144 | .~.~ Type-face-carrier including type-faces on flexible arms {1} | |
144.1 | DF | .~.~.~> Rotatable or oscillatable carrier {1} |