IPC Subgroup
C06F 3/04 Chemical treatment before or after dipping, e.g. dyeing, impregnating
Introduced: September 1968
Last revised: January 2006
Full Title
Chemical features in the manufacture of matches > Wooden strip for matches or substitute therefor > Chemical treatment before or after dipping, e.g. dyeing, impregnating
Classification Context
- Section:
- CHEMISTRY; METALLURGY
- Class:
- EXPLOSIVES; MATCHES
- Subclass:
- MATCHES; MANUFACTURE OF MATCHES