| 34 / | HD | DRYING AND GAS OR VAPOR CONTACT WITH SOLIDS |
| 523 | DF | APPARATUS {40} |
| 179 | DF | .~ Stationary receptacle or tube with agitator or conveyor {3} |
| 181 | DF | .~.~ With gas or vapor flow for contact with treated material {1} |
| 182 | ![]() | .~.~.~ Axial treated material feed type |