IPC Subgroup
H01J 1/46 Control electrodes, e.g. grid; Auxiliary electrodes
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 > Control electrodes, e.g. grid; Auxiliary electrodes
Classification Context
- Section:
- ELECTRICITY
- Class:
- ELECTRIC ELEMENTS
- Subclass:
- ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
Related Keywords
GRIDS for discharge tubes
1 direct subcode
Child Classifications
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- H01J 1/48 characterised by the material