DIFF Subgroup
F02P 15/04 one of the spark electrodes being mounted on the engine working piston
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Electric spark ignition having characteristics not provided for in, or of interest apart from, groups > one of the spark electrodes being mounted on the engine working piston
CPC:
Electric spark ignition having characteristics not provided for in, or of interest apart from, groups F02P1/00 - F02P13/00 > one of the spark electrodes being mounted on the engine working piston
No child classifications to compare. This is a leaf node in both IPC and CPC.