IPC Subgroup
H01J 15/02 Details, e.g. electrode, gas filling, shape of vessel
Introduced: September 1968
Last revised: January 2006
Full Title
Gas-filled discharge tubes with gaseous cathodes, e.g. plasma cathodes > Details, e.g. electrode, gas filling, shape of vessel
Classification Context
- Section:
- ELECTRICITY
- Class:
- ELECTRIC ELEMENTS
- Subclass:
- ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
1 direct subcode
Child Classifications
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- H01J 15/04 Circuit arrangements not adapted to a particular application of the tube and not otherwise provided for