(under subclass 126) Subject matter in which the control means comprise circuit making and/or breaking devices in series with the energizing circuit of the motor.
SEE OR SEARCH THIS CLASS, SUBCLASS:
129+, for this subject matter where the system includes circuit making and/or breaking devices combined with means for periodically actuating them.
519+, and the subclasses specified in the search notes appended thereto, for other motor control systems having circuit making and/or breaking means in the armature or primary circuit of the motor.
SEE OR SEARCH CLASS
307, Electric Transmission or Interconnection Systems,
112+, for searching systems. 361, Electricity: Electrical Systems and Devices,
1+, for safety systems using circuit breakers, and subclass 139+ for relay and electromagnetic switch circuits.
