IPC Main Group
H01J 33/00 Discharge tubes with provision for emergence of electrons or ions from the vessel; Lenard tubes
Introduced: September 1968
Last revised: January 2006
Classification Context
- Section:
- ELECTRICITY
- Class:
- ELECTRIC ELEMENTS
- Subclass:
- ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
Related Keywords
LENARD tubes
1 direct subcode
Child Classifications
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- H01J 33/02 Details