205012 ⎘
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; Photoelectric screens; Charge-storage screens; Charge-storage screens using photo-emissive mosaic, e.g. for orthicon, for iconoscope
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