204 / | HD | CHEMISTRY: ELECTRICAL AND WAVE ENERGY |
193 | DF | APPARATUS {5} |
194 | DF | .~ Electrolytic {11} |
228.1 | DF | .~.~ With current, voltage, or power control means responsive to sensed condition {8} |
229.2 | DF | .~.~.~ And programmed, cyclic, or time responsive control means {1} |
229.3 | .~.~.~.~ For controlling waveform supplied to working electrode |