204 / | HD | CHEMISTRY: ELECTRICAL AND WAVE ENERGY |
193 | DF | APPARATUS {5} |
600 | DF | .~ Electrophoretic or electro-osmotic apparatus {11} |
627 | DF | .~.~ Barrier separator (e.g., electrodialyzer, etc.) {5} |
628 | .~.~.~ With control means responsive to sensed condition |