(under subclass 106) Devices in which the secondary emission suppression is secured by the use of a nonelectron emissive material.
(1) Note. In the devices in this subclass the part which is to be nonemissive may be made of a nonemissive material or coated with a nonemissive material.
(2) Note. See the class definition for the classification of electrodes where no structure of the electrode is involved
other than composition of the materials used to form the electrodes, coated electrodes which involve no more structure than a base with one or more coatings thereon, and for the processes of making or coating electrodes.
SEE OR SEARCH THIS CLASS, SUBCLASS:
353, for electrodes, per se, which are made of two or more portions or which have a coating upon a portion of the electrode, one portion of the electrode being a nondischarge sustaining portion.
355, and the subclasses specified in the notes thereto for coated electrodes. SEE OR SEARCH CLASS
252, Compositions,
500+, and the subclasses specified in the notes thereto for materials and compositions for discharge device electrodes.
