| 429 / | HD | CHEMISTRY: ELECTRICAL CURRENT PRODUCING APPARATUS, PRODUCT, AND PROCESS |
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| 122 | DF | CURRENT PRODUCING CELL, ELEMENTS, SUBCOMBINATIONS AND COMPOSITIONS FOR USE THEREWITH AND ADJUNCTS {16} |
| 209 | DF | .~ Electrode {7} |
| 218.1 |  | .~.~ Chemically specified inorganic electrochemically active material containing {16} |
| 218.2 | DF | .~.~.~> Hydrogen storage material is active material |
| 219 | DF | .~.~.~> Silver component is active material |
| 220 | DF | .~.~.~> Copper component is active material |
| 221 | DF | .~.~.~> Iron component is active material |
| 222 | DF | .~.~.~> Cadmium component is active material |
| 223 | DF | .~.~.~> Nickel component is active material |
| 224 | DF | .~.~.~> Manganese component is active material |
| 225 | DF | .~.~.~> Lead component is active material {3} |
| 229 | DF | .~.~.~> Zinc component {2} |
| 231.1 | DF | .~.~.~> Alkalated transition metal chalcogenide component is active material {2} |
| 231.4 | DF | .~.~.~> Alkalated carbon, graphite, or carbonaceous component is active material |
| 231.5 | DF | .~.~.~> Vanadium (V), chromium (Cr), niobium (Nb), molybdenum (Mo), titanium (Ti), or tungsten (W) component is active material |
| 231.6 | DF | .~.~.~> Alkaline earth metal or magnesium (Mg) component is active material |
| 231.7 | DF | .~.~.~> Halogenated carbon, graphite, or carbonaceous component is active material |
| 231.8 | DF | .~.~.~> Carbon, graphite, or carbonaceous component is active material |
| 231.9 | DF | .~.~.~> Alkali metal component is active material {1} |