US PATENT SUBCLASS 392 / 346
.~.~ Heat accumulating medium details

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}
346.~.~ Heat accumulating medium details

DEFINITION

Classification: 392/346

Heat accumulating medium details:

(under subclass 339) Subject matter including details of the structure or composition of the heat accumulating medium.

SEE OR SEARCH CLASS

110, Furnaces,

322+, for baffle or heat retainer structure of furnace.

126, Stoves and Furnaces,

207, for heated block of body, subclass 400 for heat accumulator structure, and subclasses 674+ for absorber of solar heat collector.