(under the class definition) Devices which include a plurality of electrodes which are maintained in imperfect electrical contact, the devices being designed so that the passage of electrical current from one electrode to the other will either produce light or cause the electrodes to be heated adjacent the ends of the electrodes which are in contact with each other.
SEE OR SEARCH THIS CLASS, SUBCLASS:
315+, and the subclasses specified in the notes to the definition of those subclasses for other incandescent lamps.
SEE OR SEARCH CLASS
314, Electric Lamp and Discharge Devices: Consumable Electrodes, appropriate subclasses, for consumable electrode devices (e.g., arc lamps) which are provided with means for feeding one electrode towards the other as the electrode is consumed.
