DIFF Subgroup
H01J 3/38 Mounting, supporting, spacing, or insulating electron-optical or ion-optical arrangements
Introduced: September 1968
Full Title
Details of electron-optical or ion-optical arrangements common to two or more basic types of discharge tubes or lamps > Mounting, supporting, spacing, or insulating electron-optical or ion-optical arrangements
No child classifications to compare. This is a leaf node in both IPC and CPC.