(under subclass 260) Subject matter including means whereby some predetermined condition of the resistive element is communicated to the user by audible or other means.
SEE OR SEARCH THIS CLASS, SUBCLASS:
248, for electric irons with indicators.
487, for selectively controlled plural resistance elements with indicator means.
506, for power supply, current or voltage regulation or control means for heating devices in general under the class definition and having signal or indicating means.
SEE OR SEARCH CLASS 200, Electricity: Circuit Makers and Breakers,
167, for switches with indicators.
340, Communications: Electrical,
384.1+, for an audible signaling device or subclass 640 for a heater element condition responsive system.
