| 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 |