| 239 / | HD | FLUID SPRINKLING, SPRAYING, AND DIFFUSING |
| 569 | DF | INCLUDING VALVE MEANS IN FLOW LINE {11} |
| 583 | DF | .~ Reciprocating {2} |
| 584 | DF | .~.~ Injection nozzle type {1} |
| 585.1 | DF | .~.~.~ Electromagnetically operated valve (e.g., ball-type) {3} |
| 585.4 | DF | .~.~.~.~ Elongated armature with integral projection {1} |
| 585.5 | | .~.~.~.~.~ Needle-type projection |