US PATENT SUBCLASS 219 / 546
.~.~ Core, sheath, or support means for heating element

Current as of: June, 1999
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219 /   HD   ELECTRIC HEATING

200  DF  HEATING DEVICES {14}
538  DF  .~ With heating unit structure {6}
546.~.~ Core, sheath, or support means for heating element {2}
547  DF  .~.~.~> Comprising material to be heated
548  DF  .~.~.~> Of particular construction or material {3}

DEFINITION

Classification: 219/546

(under subclass 538) Subject matter wherein the significant structural details relate to the particular core, sheath or support means for the resistive or other heating element.

SEE OR SEARCH CLASS

338, Electrical Resistors,

321, for resistive element cores and frames.