IPC Subgroup
H01J 3/04 Ion guns
Introduced: September 1968
Last revised: January 2006
Full Title
Details of electron-optical or ion-optical arrangements common to two or more basic types of discharge tubes or lamps > Ion guns
Classification Context
- Section:
- ELECTRICITY
- Class:
- ELECTRIC ELEMENTS
- Subclass:
- ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS