IPC Subgroup
F17D 3/12 for injecting a composition into the line
Introduced: July 1974
Last revised: January 2006
Full Title
Arrangements for supervising or controlling working operations > for injecting a composition into the line
Classification Context
- Section:
- MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- Class:
- STORING OR DISTRIBUTING GASES OR LIQUIDS
- Subclass:
- PIPE-LINE SYSTEMS; PIPE-LINES