429 / | HD | CHEMISTRY: ELECTRICAL CURRENT PRODUCING APPARATUS, PRODUCT, AND PROCESS |
67 | HAVING MOVABLE MECHANICAL MEANS TO PROVIDE RELATIVE MOTION BETWEEN ELECTRODE AND ELECTROLYTE {2} | |
68 | DF | .~> Means moves electrode {1} |
70 | DF | .~> Means moves electrolyte externally of electrode chamber |