400 / | HD | TYPEWRITING MACHINES |
663 | DF | LOCKING OR INTERLOCKING MECHANISM {7} |
668 | DF | .~ Locking means actuated in response to a condition {4} |
671 | DF | .~.~ End of maximum typed line {5} |
671.2 | DF | .~.~.~ Universal-bar lock (e.g, pivoted latch, slidable latch, etc.) {2} |
671.3 | .~.~.~.~ Actuated by paper-finger |