H01J 1/90 Insulation between electrodes or supports within the vacuum space
Introduced: September 1968
Full Title
Full titles differ between systems:
Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps > Mounting, supporting, spacing, or insulating of electrodes or of electrode assemblies > Insulation between electrodes or supports within the vacuum space
Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps (details of electron-optical or ion-optical arrangements H01J3/00) > Mounting, supporting, spacing, or insulating of electrodes or of electrode assemblies > Insulation between electrodes or supports within the vacuum space
No child classifications to compare. This is a leaf node in both IPC and CPC.