400 / | HD | TYPEWRITING MACHINES |
578 | DF | SHEET OR WEB (E.G., RECORD-MEDIUM FEEDING MECHANISM) {13} |
584 | DF | .~ Including feed of plural record-media arranged side-by-side (e.g., fed independently of platen) {1} |
585 | .~.~ By divided platen {1} | |
585.1 | DF | .~.~.~> With positive clutch for simultaneous rotation of platen sections |