| 34 / | HD | DRYING AND GAS OR VAPOR CONTACT WITH SOLIDS |
| 523 | DF | APPARATUS {40} |
| 184 | DF | .~ Rotary or swinging carrier or rack {3} |
| 187 | DF | .~.~ With gas or vapor circulation for contact with treated material {1} |
| 188 | ![]() | .~.~.~ Air scoops and/or suspended treated material supports |