| 204 / | HD | CHEMISTRY: ELECTRICAL AND WAVE ENERGY |
| 193 | DF | APPARATUS {5} |
| 194 | DF | .~ Electrolytic {11} |
| 230.2 | ![]() | .~.~ With current, voltage, or power control means {6} |
| 230.3 | DF | .~.~.~> Mechanical |
| 230.4 | DF | .~.~.~> For inhibiting short circuits |
| 230.5 | DF | .~.~.~> Switch or connector |
| 230.6 | DF | .~.~.~> For controlling waveform |
| 230.7 | DF | .~.~.~> Having auxiliary electrode |
| 230.8 | DF | .~.~.~> Having specified circuit details |