| 65 / | HD | GLASS MANUFACTURING |
| 376 | DF | PROCESSES OF MANUFACTURING FIBERS, FILAMENTS, OR PREFORMS {18} |
| 385 | DF | .~ Process of manufacturing optical fibers, waveguides, or preforms thereof {29} |
| 413 | DF | .~.~ With step of vapor deposition {4} |
| 423 | ![]() | .~.~.~ Inorganic carbon, metal oxide, or inorganic nitrogen containing material deposited (e.g., elemental carbon, carbides, nitrides, etc.) |