DIFF Subgroup
H01T 21/06 Adjustment of spark gaps (sparking-plugs having movable electrodes for adjusting the gap H01T13/26)
Introduced: January 1985
Title
Titles differ between systems:
IPC: Adjustment of spark gaps
CPC: Adjustment of spark gaps (sparking-plugs having movable electrodes for adjusting the gap H01T13/26)
Full Title
Full titles differ between systems:
IPC:
Apparatus or processes specially adapted for the manufacture or maintenance of spark gaps or sparking plugs > Adjustment of spark gaps
CPC:
Apparatus or processes specially adapted for the manufacture or maintenance of spark gaps or sparking plugs > Adjustment of spark gaps (sparking-plugs having movable electrodes for adjusting the gap H01T13/26)
No child classifications to compare. This is a leaf node in both IPC and CPC.