222 / | HD | DISPENSING |
251 | DF | WITH DISCHARGE ASSISTANT (E.G., IMPELLER, PUMP, CONVEYER, MOVABLE TRAP CHAMBER, ETC.) {30} |
282 | DF | .~ With discharge volume varying means {12} |
285 | DF | .~.~ Source and assistant relatively adjustable axially of source outlet {1} |
286 | .~.~.~ Sleeve-type discharge controller for outlet |