IPC Subgroup
F42B 3/13 with semiconductive bridge
Introduced: January 1990
Last revised: January 2006
Full Title
Blasting cartridges, i.e. case and explosive > Initiators therefor > Bridge initiators > with semiconductive bridge
Classification Context
- Section:
- MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- Class:
- AMMUNITION; BLASTING
- Subclass:
- EXPLOSIVE CHARGES, e.g. FOR BLASTING; FIREWORKS; AMMUNITION