| 65 / | HD | GLASS MANUFACTURING |
| 483 | DF | FIBER MAKING APPARATUS {21} |
| 524 | ![]() | .~ With fluid blast means {3} |
| 525 | DF | .~.~> Having specified nozzle opening size or nozzle cross section |
| 526 | DF | .~.~> Having fluid discharge skirt or deflector {1} |
| 528 | DF | .~.~> Combustion or flame attenuation |