34 / | HD | DRYING AND GAS OR VAPOR CONTACT WITH SOLIDS |
282 | DF | PROCESS {24} |
329 | DF | .~ With contacting of material treated with solid or liquid agent {5} |
343 | DF | .~.~ With addition of heat to drying process {3} |
348 | DF | .~.~.~ Treating agent is a liquid {2} |
350 | DF | .~.~.~.~ Treating solid material {2} |
351 | .~.~.~.~.~ Treating agent displaces moisture |