(under subclass 272) Subject matter wherein the storage medium has a track in the form of a variation in an electrical property.
(1) Note. The term "variation in an electrical property" refers to modification of an electric field or current, for example, variable depth capacitive layers or variable thickness resistive layers.
SEE OR SEARCH THIS CLASS, SUBCLASS:
126, for devices utilizing such storage medium elements.
SEE OR SEARCH CLASS
338, Electrical Resistors,
204+, for resistive elements piled between terminals; and subclass 211 for a resistive element coated on a flexible base. 361, Electricity: Electrical Systems and Devices,