| 172 / | HD | EARTH WORKING |
| 324 | DF | WITH ACTUATOR ON TRAILING GROUND SUPPORTED FRAME FOR MOVING DRAFT MEANS LATERALLY OR VERTICALLY {2} |
| 326 | DF | .~ Vertically {1} |
| 327 | DF | .~.~ With vertically adjustable ground support {1} |
| 328 | ![]() | .~.~.~ Interconnected means for adjusting draft means and ground support |