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IPC Main Group
E04F 17/00

Vertical ducts; Channels, e.g. for drainage

Introduced: September 1968

Last revised: January 2006

Classification Context

Section:
FIXED CONSTRUCTIONS
Class:
BUILDING
Subclass:
FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS

Related Keywords

CHANNELS in building structuresCHUTES in building structuresCONDUITS in building structuresDUCTS in building structuresSHAFT(S) in buildings

5 direct subcodes

Child Classifications

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  • E04F 17/02 for carrying away waste gases, e.g. flue gases; Building elements specially designed therefor, e.g. shaped bricks or sets thereof
  • E04F 17/04 Air-ducts or air channels
  • E04F 17/06 Light shafts, e.g. for cellars
  • E04F 17/08 for receiving utility lines, e.g. cables, pipes