IPC Subgroup
E04F 11/022 characterised by the supporting structure
Introduced: January 1995
Last revised: January 2006
Full Title
Stairways, ramps, or like structures; Balustrades; Handrails > Stairways; Layouts thereof > characterised by the supporting structure
Classification Context
- Section:
- FIXED CONSTRUCTIONS
- Class:
- BUILDING
- Subclass:
- FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
3 direct subcodes
Child Classifications
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- E04F 11/025 Stairways having stringers
- E04F 11/032 Spiral stairways supported by a central column
- E04F 11/035 Stairways consisting of a plurality of assembled modular parts without further support