DIFF Subgroup
F42B 4/24 characterised by having plural successively-ignited charges (in aerial display rockets F42B4/14)
Introduced: July 1974
Title
Titles differ between systems:
IPC: characterised by having plural successively-ignited charges
CPC: characterised by having plural successively-ignited charges (in aerial display rockets F42B4/14)
Full Title
Full titles differ between systems:
IPC:
Fireworks, i.e. pyrotechnic devices for amusement, display, illumination, or signal purposes > characterised by having plural successively-ignited charges
CPC:
Fireworks, i.e. pyrotechnic devices for amusement, display, illumination or signal purposes (signalling by explosives G08B; advertising by fireworks G09F13/46; ) > characterised by having plural successively-ignited charges (in aerial display rockets F42B4/14)
No child classifications to compare. This is a leaf node in both IPC and CPC.