DIFF Subgroup
F23Q 23/08 Testing of components (of sparking plugs H01T13/58, F02P17/12)
Introduced: September 1968
Title
Titles differ between systems:
IPC: Testing of components
CPC: Testing of components (of sparking plugs H01T13/58, F02P17/12)
Full Title
Full titles differ between systems:
IPC:
Testing of ignition installations > Testing of components
CPC:
Testing of ignition installations (peculiar to internal-combustion engines F02P17/00) > Testing of components (of sparking plugs H01T13/58, F02P17/12)
IPC and CPC are identically structured here. All 1 subcodes exist in both systems.
Child Classifications
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