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} |
233 | DF | .~.~ Grid or holder for active material {6} |
241 | .~.~.~ Open mesh or perforated plate {2} | |
242 | DF | .~.~.~.~> Expanded metal |
243 | DF | .~.~.~.~> Having members in a face plane of the grid being offset from members in the plane of the opposite face {1} |