| 429 / | HD | CHEMISTRY: ELECTRICAL CURRENT PRODUCING APPARATUS, PRODUCT, AND PROCESS | 
| 122 | DF | CURRENT PRODUCING CELL, ELEMENTS, SUBCOMBINATIONS AND COMPOSITIONS FOR USE THEREWITH AND ADJUNCTS {16} | 
| 209 | DF | .~ Electrode {7} | 
| 218.1 | DF | .~.~ Chemically specified inorganic electrochemically active material containing {16} | 
| 231.8 |  | .~.~.~ Carbon, graphite, or carbonaceous component is active material |