IPC Subgroup
H01J 13/48 Circuit arrangements not adapted to a particular application of the tube and not otherwise provided for
Introduced: September 1968
Last revised: January 2006
Full Title
Discharge tubes with liquid-pool cathodes, e.g. metal-vapour rectifying tubes > Details > Circuit arrangements not adapted to a particular application of the tube and not otherwise provided for
Classification Context
- Section:
- ELECTRICITY
- Class:
- ELECTRIC ELEMENTS
- Subclass:
- ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS