.~.~.~ With switch or other external circuit completing means
DEFINITION
Classification: 219/414
(under subclass 391) Subject matter including significant details of means whereby a circuit is completed between the heating unit or units of the device and an external current source.
SEE OR SEARCH THIS CLASS, SUBCLASS:
507+, below for heaters under the class definition combined with external circuit completion or disconnection means.
SEE OR SEARCH CLASS
200, Electricity: Circuit Makers and Breakers, appropriate subclasses for electric switch structure.