(under subclass 379) Subject matter in which impedance devices or other current-controlling devices are connected in the locally closed circuit.
(1) Note. Where the "other current-controlling device" is a useful electric load device for performing some useful purpose other than as a mere current-controlling device, classification is not herein. For example, where the load device is a light generating device used for illumination purposes or is a secondary battery in which energy is stored indefinitely for any purpose, classification is not herein. See Class 307, electrical Transmission or Interconnection Systems, subclass 11.
SEE OR SEARCH THIS CLASS, SUBCLASS:
508, and the subclasses specified in the Notes thereto, for other motor control systems wherein impedance devices are connected in the armature or primary circuit of the motor.
SEE OR SEARCH CLASS
307, Electrical Transmission or Interconnection Systems, 11, see (1) Note above.
