US PATENT SUBCLASS 429 / 20
.~.~ By heating or cooling

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


429 /   HD   CHEMISTRY: ELECTRICAL CURRENT PRODUCING APPARATUS, PRODUCT, AND PROCESS

12  DF  FUEL CELL, SUBCOMBINATION THEREOF OR METHODS OF OPERATING {10}
19  DF  .~ Having means for active material generation or regeneration {2}
20.~.~ By heating or cooling

DEFINITION

Classification: 429/20

(under subclass 19) Apparatus having means providing a temperature differential.