| 427 / | HD | COATING PROCESSES | 
| 248.1 | DF | COATING BY VAPOR, GAS, OR SMOKE {9} | 
| 255.23 | DF | .~ Mixture of vapors or gases (e.g., deposition gas and inert gas, inert gas and reactive gas, two or more reactive gases, etc.) utilized {5} | 
| 255.26 |  | .~.~ Coating formed by reaction of vaporous or gaseous mixture with a base (i.e., reactive coating of non-metal base) {1} | 
| 255.27 | DF | .~.~.~> Silicon containing coating |