400 / | HD | TYPEWRITING MACHINES |
191 | DF | INCLUDING INTERPOSED INKING DEVICE (E.G., RIBBON) FOR RECORD-MEDIUM {15} |
218 | DF | .~ Ribbon-reversing mechanism {4} |
220 | DF | .~.~ Alternative pawl-and-ratchet drive including ratchet directly connected to spool or spindle {2} |
220.2 | .~.~.~ Including member interposed in pawl drive path |