(under subclass 32) Subject matter, wherein the circuit element which is structurally combined with the load device structure is either an electric current generator or a piezoelectric device.
(1) Note. Some of the current generators in the combinations in this subclass are thermoelectric devices.
SEE OR SEARCH THIS CLASS, SUBCLASS:
33, for portable, self-contained devices and apparatus which include a source of potential and the other circuit elements
necessary to operate the load device structure.
SEE OR SEARCH CLASS
136, Batteries: Thermoelectric and Photoelectric, appropriate subclasses, for electric current generating batteries. 310, Electrical Generator or Motor Structure, appropriate subclasses for miscellaneous electric current generators and
339, for piezoelectric devices.
429, Chemistry: Electrical Current Producing Apparatus, Product, and Process, appropriate subclasses for electrochemical batteries.
