| 15 / | HD | BRUSHING, SCRUBBING, AND GENERAL CLEANING |
| 3 | DF | MACHINES {11} |
| 300.1 | DF | .~ With air blast or suction {26} |
| 347 | DF | .~.~ With dust or dirt handling or storing or separating, e.g., filter bags {5} |
| 353 | | .~.~.~ With liquid and/or deflection type separator |