Description
This class includes all those devices commonly known as electricheaters, electric-heating metal working apparatus, electrically-heatedtools and instruments. Processes are classified with the apparatusunless otherwise indicated by the subclass title.
This is the generic class for electric heating devices, per se.Devices and systems equipped with electric heating means in whichthe electric heating means is combined with or includes specificother art structure whereby the heated material is withdrawn, storedor otherwise utilized will be classified in the appropriate otherart class to which it pertains and cross referenced back to Class 219.