(under subclass 69) Subject matter provided with means for changing the impedance of the circuit supplying current to the motor.
SEE OR SEARCH THIS CLASS, SUBCLASS:
70, for systems under subclass 69 provided with an impedance in the motor circuit which acts as a dynamic brake on the motor when the electrodes have been moved to or almost to the proper position.
SEE OR SEARCH CLASS
318, Electricity: Motive Power Systems,
508, and the search notes thereunder, for electric motor
control by impedance in the primary or armature circuit.
