(b) with respect to a colour cat
hode-ray television picture tube (including video monitor or video projector cathode-ray
tube), an assembly which consists of
a glass panel and a shadow mask or aperture grille, attached for ultimate use, which is suitable for incorporation into a colour cathode- ray television picture
tube (including video monitor or video projector cathode-ray
tube), and which has undergone the necessary chemical and physical processes
...[+++] for imprinting phosphors on the glass panel with sufficient precision to render a video image when excited by a stream of electrons; or