on opposite sides of screen, e.g. for conversion of definition

Full Title

Cathode-ray tubes; Electron-beam tubes > having a screen on or from which an image or pattern is formed, picked-up, converted, or stored > Tubes for storage of image or information pattern or for conversion of definition of television or like images, i.e. having electrical input and electrical output > having means for deflecting, either selectively or sequentially, an electron ray on to separate surface elements of the screen > with separate reading and writing rays > on opposite sides of screen, e.g. for conversion of definition

Classification Context

Section:

ELECTRICITY

Class:

ELECTRIC ELEMENTS

Subclass:

ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS