US PATENT SUBCLASS 392 / 425
.~.~.~.~ With exposed radiant heating element

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

*  DD  HEATING DEVICES (CLASS 219 SUBCLASS 200) {11}
407  DF  .~ Radiant heater {10}
422  DF  .~.~ With reflector {4}
423  DF  .~.~.~ Elongated reflector {2}
425.~.~.~.~ With exposed radiant heating element

DEFINITION

Classification: 392/425

With exposed radiant heating element:

(under subclass 423) Subject matter in which the heating element lays open to the atmosphere.