IPC Subgroup
H01T 13/41 with interference suppressing or shielding means
Introduced: January 1985
Last revised: January 2006
Full Title
Sparking plugs > structurally combined with other devices > with interference suppressing or shielding means
Classification Context
- Section:
- ELECTRICITY
- Class:
- ELECTRIC ELEMENTS
- Subclass:
- SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES