| 446 / | HD | AMUSEMENT DEVICES: TOYS |
| 176 | DF | OPERATED BY RELATIVELY MOVING FLUID OR PRESSURE DIFFERENTIAL {9} |
| 180 | DF | .~ Including variable-size fluid chamber to move fluid {5} |
| 188 | DF | .~.~ Sounding {5} |
| 192 | ![]() | .~.~.~ Including motive power means or hand manipulator for sounder {1} |
| 193 | DF | .~.~.~.~> And bellows or bulb |