IPC Subgroup
F42D 1/055 specially adapted for firing multiple charges with a time delay
Introduced: January 1990
Last revised: January 2006
Full Title
Blasting methods or apparatus, e.g. for loading or tamping > Arrangements for ignition > Arrangements for electric ignition > Electric circuits for blasting > specially adapted for firing multiple charges with a time delay
Classification Context
- Section:
- MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- Class:
- AMMUNITION; BLASTING
- Subclass:
- BLASTING