(under the class definition) Devices provided with means to transfer the electric current from the lead wires to the movable electrode.
SEE OR SEARCH CLASS
191, Electricity: Transmission to Vehicles, appropriate subclasses, for means for transmitting electrical energy between relatively movable objects, note especially
1, for miscellaneous devices for transferring electrical energy from a stationary contact to a moving conductor.
313, Electric Lamp and Discharge Devices, see the class definition for the classification of electrodes for discharge devices where the electrode is provided with an electrical connector which is fastened to the electrode.
