Circuits providing for substitution of the light source in case of its failure

Full Title

Circuit arrangements or apparatus for operating incandescent light sources > Circuits providing for substitution of the light source in case of its failure

Classification Context

Section:

ELECTRICITY

Class:

ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR

Subclass:

ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL