Electric spark ignition having characteristics not provided for in, or of interest apart from, groups [CPC: F02P1/00] - [CPC: F02P13/00] {and combined with layout of ignition circuits } having continuous electric sparks
Electric spark ignition having characteristics not provided for in, or of interest apart from, groups [CPC: F02P1/00] - [CPC: F02P13/00] {and combined with layout of ignition circuits } having continuous electric sparks