US PATENT SUBCLASS 392 / 460
.~.~.~.~ Producing radiation

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

*  DD  HEATING DEVICES (CLASS 219 SUBCLASS 200) {11}
441  DF  .~ Tank or container type liquid heater {4}
449  DF  .~.~ Line connected tank {4}
458  DF  .~.~.~ With external heater {3}
460.~.~.~.~ Producing radiation

DEFINITION

Classification: 392/460

Producing radiation:

(under subclass 458) Subject matter wherein the external heater emits heat in the form of electromagnetic waves within the infrared range of spectrum.

SEE OR SEARCH THIS CLASS, SUBCLASS:

355, for heated by radiant source.

391, for vaporization by radiant heat source.

407, for electric radiant heater in general.

483, for fluid heater producing radiation.

SEE OR SEARCH CLASS 126, Stoves and Furnaces,

569+, for solar heat collector.

165, Heat Exchange,

133, for coated, roughened or polished surface.

250, Radiant Energy,

493.1+, for infrared radiation generators not provided for elsewhere.

432, Heating,

31, for heating of or by wall or radiant surface.