(under subclass 227) Subject matter wherein at least one of the light sources consists of a light emitting heated or ionized solid or gas of one type and at least one other light source consists of a light emitting heated or ionized solid or gas of another type.
(1) Note. Examples of types of diverse light generators provided for in this subclass and the subclasses indented hereunder include any two of the following: electrically (resistively) heated carbon filament, electrically (resistively) heated tungsten filament, electrically ionized neon, hot gaseous products of combustion (flame), partially ionized (irradiated) phosphor coating (fluorescent tube).
