204994 ⎘
Details of cathode-ray tubes or of electron-beam tubes of the types covered by group; Electrodes; Screens; Mounting, supporting, spacing or insulating thereof; Screens on or from which an image or pattern is formed, picked up, converted or stored; Luminescent screens characterised by the binder or adhesive for securing the luminescent material to its support, e.g. vessel
Sub-classes: