DIFF Subgroup
F02P 15/08 having multiple-spark ignition, i.e. ignition occurring simultaneously at different places in one engine cylinder or in two or more separate engine cylinders
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 > having multiple-spark ignition, i.e. ignition occurring simultaneously at different places in one engine cylinder or in two or more separate engine cylinders
CPC:
Electric spark ignition having characteristics not provided for in, or of interest apart from, groups F02P1/00 - F02P13/00 > having multiple-spark ignition, i.e. ignition occurring simultaneously at different places in one engine cylinder or in two or more separate engine cylinders
No child classifications to compare. This is a leaf node in both IPC and CPC.