429 / | HD | CHEMISTRY: ELECTRICAL CURRENT PRODUCING APPARATUS, PRODUCT, AND PROCESS |
12 | DF | FUEL CELL, SUBCOMBINATION THEREOF OR METHODS OF OPERATING {10} |
13 | .~ Process of operating {3} | |
14 | DF | .~.~> Circulating or feeding electrolyte {1} |
16 | DF | .~.~> Fused or molten electrolyte |
17 | DF | .~.~> Generating, regenerating or recycling reactant |