| 34 / | HD | DRYING AND GAS OR VAPOR CONTACT WITH SOLIDS |
| 523 | DF | APPARATUS {40} |
| 611 | DF | .~ Sheet, web, or strand {3} |
| 618 | DF | .~.~ For flexible sheet, web, or strand {6} |
| 623 | DF | .~.~.~ Running length {5} |
| 629 | DF | .~.~.~.~ With gas or vapor circulation for contact with treated material {15} |
| 640 | DF | .~.~.~.~.~ Fluid current support or guide {3} |
| 643 | DF | .~.~.~.~.~.~ Having nozzles on opposite sides of web {1} |
| 644 | ![]() | .~.~.~.~.~.~.~ Adjustable distance between opposed nozzles |