| 34 / | HD | DRYING AND GAS OR VAPOR CONTACT WITH SOLIDS |
| 282 | DF | PROCESS {24} |
| 307 | ![]() | .~ Retarding or shielding of treatment {4} |
| 308 | DF | .~.~> Radiation applying with shielding |
| 309 | DF | .~.~> Shielding by selective application of gas or vapor flow |
| 310 | DF | .~.~> Application of temporary coating |
| 311 | DF | .~.~> Shielding by use of physical barrier to treating gas or vapor |