(under the class definition) Subject matter wherein the discharge device is provided with two or more cathodes and/or two or more anodes.
SEE OR SEARCH THIS CLASS, SUBCLASS:
1, and indented subclasses, for consumable electrode discharge devices having three or more electrodes wherein the discharge is initiated between two of the electrodes and is maintained between these electrodes until at least one of the electrodes is consumed, the discharge then being shifted to another electrode or to other electrodes.
31, for consumable electrode discharge devices having three or more electrodes supplied with polyphase alternating current.
33, for consumable electrode discharge devices having three or more electrodes connected in series in the electrical circuit.
34, for consumable electrode discharge devices having two or more electrodes, one of the electrodes designed only to initiate the discharge between two or more of the other electrodes. SEE OR SEARCH CLASS
313, Electric Lamp and Discharge Devices,
307, and the subclasses specified in the Notes thereto for miscellaneous discharge devices which are provided with a plurality of cathodes and a plurality of anodes.
315, Electric Lamp and Discharge Devices: Systems,
334, and indented subclasses and the subclasses specified in the notes to the definitions of those subclasses, for miscellaneous systems for supplying electric current and/or potential to a plural cathode and/or anode discharge device of the gas or vapor ionization type.
