IPC Subgroup
H01J 1/5 Magnetic means for controlling the discharge
Introduced: September 1968
Last revised: January 2006
Full Title
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 > Magnetic means for controlling the discharge
Classification Context
- Section:
- ELECTRICITY
- Class:
- ELECTRIC ELEMENTS
- Subclass:
- ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS