Skip to content
Patent Classification Explorer
PCE
AI Classify
Search classifications...
/
Toggle theme
Search Classifications
Search for IPC and CPC classification codes or keywords
IPC
CPC
Diff
H
H01
H01T
H01T 13/00
H01T 13/46
H01T 13/467
CPC
Subgroup
H01T 13/467
Full Title
Sparking plugs > having two or more spark gaps