DIFF Subgroup
H01J 29/16 Incandescent screens
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
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 > Incandescent screens
CPC:
Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00 > Electrodes; Screens; Mounting, supporting, spacing or insulating thereof > Screens on or from which an image or pattern is formed, picked up, converted or stored > Incandescent screens
No child classifications to compare. This is a leaf node in both IPC and CPC.