US PATENT SUBCLASS 219 / 484
.~.~.~ Of diverse resistance characteristics or value

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

200  DF  HEATING DEVICES {14}
482  DF  .~ With power supply and voltage or current regulation or current control means {4}
483  DF  .~.~ Controlling or regulating plural separate distinct heating resistance elements(i.e., one control system for all elements) {3}
484.~.~.~ Of diverse resistance characteristics or value

DEFINITION

Classification: 219/484

(under subclass 483) Subject matter wherein the plural separate resistance elements have diverse resistance characteristics or values.

SEE OR SEARCH THIS CLASS, SUBCLASS:

539, for significant heating unit structure under the class definition and comprising plural distinct resistive heating elements, and subclass 552 for heating elements, per se, consisting of plural sections.