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 |