IPC Subgroup
F21K 5/04 Plural charges, e.g. associated for sequential ignition
Introduced: January 1990
Last revised: January 2006
Full Title
Light sources using charges of combustible material, e.g. illuminating flash devices > Plural charges, e.g. associated for sequential ignition
Classification Context
- Section:
- MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- Class:
- LIGHTING
- Subclass:
- NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR