US PATENT SUBCLASS 392 / 313
.~.~ Portable

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

*  DD  HEATING DEVICES (CLASS 219 SUBCLASS 200) {11}
311  DF  .~ Fluid-in-circuit type heater {6}
313.~.~ Portable

DEFINITION

Classification: 392/313

Portable:

(under subclass 311) Subject matter wherein the

fluid-in-circuit heater may be lifted or carried bodily from place-to-place by hand.

SEE OR SEARCH CLASS

219, Electric Heating,

523, for housing, casing or support insertable into material or support to be heated.