acting by discolouration, e.g. halide screen

Full Title

Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps > Screens on or from which an image or pattern is formed, picked-up, converted, or stored; Luminescent coatings on vessels > acting by discolouration, e.g. halide screen

Classification Context

Section:

ELECTRICITY

Class:

ELECTRIC ELEMENTS

Subclass:

ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS