IPC Subgroup
E04F 17/02 for carrying away waste gases, e.g. flue gases; Building elements specially designed therefor, e.g. shaped bricks or sets thereof
Introduced: September 1968
Last revised: January 2006
Full Title
Vertical ducts; Channels, e.g. for drainage > for carrying away waste gases, e.g. flue gases; Building elements specially designed therefor, e.g. shaped bricks or sets thereof
Classification Context
- Section:
- FIXED CONSTRUCTIONS
- Class:
- BUILDING
- Subclass:
- FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
Related Keywords
CHIMNEY(S) ducts in building structuresFLUES for combustion apparatusSMOKE ducts in building structures