US PATENT SUBCLASS 219 / 410
.~.~.~.~ With plural section heating element

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

200  DF  HEATING DEVICES {14}
385  DF  .~ Combined with container, enclosure, or support for material to be heated {12}
391  DF  .~.~ Oven type {12}
409  DF  .~.~.~ With heating unit structure or composition {2}
410.~.~.~.~ With plural section heating element

DEFINITION

Classification: 219/410

(under subclass 409) Subject matter comprising a single heating element having a plurality of sections which may be energized simultaneously to provide an element of one resistance value or selectively to provide variable resistance means.

SEE OR SEARCH THIS CLASS, SUBCLASS:

539, for heating element structure in general under the class definition and comprising plural sections.