DIFF Subgroup
G08B 7/08 using explosives
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Signalling systems according to two or more of groups > using explosives
CPC:
Signalling systems according to two or more of groups G08B3/00 - G08B6/00 > using explosives
No child classifications to compare. This is a leaf node in both IPC and CPC.