(under subclass 15) Subject matter in which the lamp or discharge device is provided with a liquid electrode and the electric heater is provided to heat the liquid electrode.
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29, for other devices under subclass 11 having liquid electrode and having temperature modifying means for the liquid electrode.
163+, for other liquid electrode discharge devices.
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315, Electric Lamp and Discharge Devices: Systems, 115+, for lamp and discharge device systems where the lamp or discharge device is provided with a liquid electrode and an electric heater therefor, the system including means to control or to supply current to the heater or to the lamp or discharge device.