(under subclass 21) Subject matter designed to feed an initially fluent material into the discharge area.
SEE OR SEARCH CLASS
313, Electric Lamp and Discharge Devices, see the reference to this class under (7) Search Class, in the Notes to
21, above.
315, Electric Lamp and Discharge Devices: Systems,
111.01+, for miscellaneous systems for supplying electric current and/or potential to electric space discharge devices
of the gas or vapor ionization type, including space discharge lamps, the discharge device being provided with means to supply a fluent material to the discharge space.
