172 / | HD | EARTH WORKING |
810 | DF | MOUNTING FOR PUSHED TOOL AT END OF MOTOR VEHICLE {3} |
811 | DF | .~ Transversely mounted blade (e.g., bulldozer, etc.) {11} |
828 | DF | .~.~ With power means for raising and lowering blade {2} |
829 | .~.~.~ Including elongated flexible element (e.g., cable) connecting power means to tool or mounting means |