US PATENT SUBCLASS 392 / 340
.~.~ Method

Current as of: June, 1999
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392 /   HD   ELECTRIC RESISTANCE HEATING DEVICES

*  DD  HEATING DEVICES (CLASS 219 SUBCLASS 200) {11}
339  DF  .~ With heat storage means {7}
340.~.~ Method

DEFINITION

Classification: 392/340

Method:

(under subclass 339) Subject matter including processes for storing heat in the heat accumulating medium or dissipating stored heat at a later time.

SEE OR SEARCH CLASS

165, Heat Exchange,

236, for process of heat exchange.

432, Heating,

30, for process of utilizing a heat storage means.