DIFF Subgroup
F42B 3/12 Bridge initiators
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Blasting cartridges, i.e. case and explosive > Initiators therefor > Bridge initiators
CPC:
Blasting cartridges, i.e. case and explosive (fuse cords, e.g. detonating fuse cords C06C5/00; chemical aspects of detonators, blasting caps or primers C06C7/00) > Initiators therefor (percussion fuzes F42C7/00; percussion caps F42C19/10; electric primers F42C19/12) > Bridge initiators
CPC subdivides this area 5x more granularly than IPC with 4 additional codes.
4 codes are CPC-only extensions.
IPC defines codes here since 1990.
Child Classifications
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