US PATENT SUBCLASS 429 / 47
HAVING EARTH FEATURE


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

47HAVING EARTH FEATURE


DEFINITION

Classification: 429/47

(under the class definition) Apparatus wherein a portion of the earth constitutes a part of the battery.

SEE OR SEARCH THIS CLASS, SUBCLASS:

119, for sea water-type battery.