DIFF Subgroup
F02B 19/12 with positive ignition (engines with non-timed positive ignition, and with incandescent chambers F02B9/08)
Introduced: September 1968
Title
Titles differ between systems:
IPC: with positive ignition
CPC: with positive ignition (engines with non-timed positive ignition, and with incandescent chambers F02B9/08)
Full Title
Full titles differ between systems:
IPC:
Engines characterised by precombustion chambers > with positive ignition
CPC:
Engines characterised by precombustion chambers > with positive ignition (engines with non-timed positive ignition, and with incandescent chambers F02B9/08)
No child classifications to compare. This is a leaf node in both IPC and CPC.