| 205 / | HD | ELECTROLYSIS: PROCESSES, COMPOSITIONS USED THEREIN, AND METHODS OF PREPARING THE COMPOSITIONS |
| 640 | DF | ELECTROLYTIC EROSION OF A WORKPIECE FOR SHAPE OR SURFACE CHANGE (E.G., ETCHING, POLISHING, ETC.) (PROCESS AND ELECTROLYTE COMPOSITION) {19} |
| 674 | DF | .~ Electrolyte composition or defined electrolyte {6} |
| 675 | DF | .~.~ Less than 50 weight percent water {3} |
| 676 | DF | .~.~.~ More than 20 weight percent organic material {2} |
| 678 | | .~.~.~.~ With sulfuric acid |