400 / | HD | TYPEWRITING MACHINES |
191 | DF | INCLUDING INTERPOSED INKING DEVICE (E.G., RIBBON) FOR RECORD-MEDIUM {15} |
223 | DF | .~ Ribbon-feeding mechanism {13} |
236 | DF | .~.~ Drive applied directly to spool or spool spindle {2} |
236.2 | .~.~.~ By a gear driving a gear on the spool or spindle |