(under subclass 821) Subject matter wherein the impedance element of the circuit is controlled totally by manual means requiring only human force.
(1) Note. The term "control" as used herein means to add, remove, or somehow change the impedance of a resistive, inductive, or capacitive electrical element.
SEE OR SEARCH THIS CLASS, SUBCLASS:
821, for relay operated switching circuits to control the adding, removal, or the changing of impedance elements in the secondary circuit of the motor.
