IPC Subgroup
H01T 21/04 Cleaning
Introduced: September 1968
Last revised: January 2006
Full Title
Apparatus or processes specially adapted for the manufacture or maintenance of spark gaps or sparking plugs > of sparking plugs > Cleaning
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
Scope Notes
Limiting references: Means for self-cleaning Abrasive blasting devices for cleaning sparking-plugs