US PATENT SUBCLASS 429 / 23
.~.~ Electrical output dependent

Current as of: June, 1999
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429 /   HD   CHEMISTRY: ELECTRICAL CURRENT PRODUCING APPARATUS, PRODUCT, AND PROCESS

12  DF  FUEL CELL, SUBCOMBINATION THEREOF OR METHODS OF OPERATING {10}
22  DF  .~ Automatic control means {3}
23.~.~ Electrical output dependent

DEFINITION

Classification: 429/23

(under subclass 22) Apparatus wherein the control is responsive to the electrical output of the cell, either current or voltage.