DIFF Subgroup
E04F 11/02 Stairways; Layouts thereof
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Stairways, ramps, or like structures; Balustrades; Handrails > Stairways; Layouts thereof
CPC:
Stairways, ramps, or like structures (mounting or marking-off stairways E04F21/26; of temporary construction E04G27/00; means for facilitating access to swimming pools E04H4/144; ); Balustrades; Handrails (ladders permanently attached to fixed structures E06C9/00) > Stairways; Layouts thereof
Of 6 combined children, 4 exist in both systems.
2 codes are CPC-only extensions.
Note: 1 CPC extensions are marked as secondary classification only.
1 shared codes have differing titles between IPC and CPC.
Child Classifications
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- E04F 11/022 characterised by the supporting structure since 1995 +2 CPC IPC+CPC Available in IPC and CPC
- E04F 11/04 Movable stairways, e.g. of loft ladders which may or may not be concealable or extensible (ship ladders B63B; stairs for aircraft B64F; escalators or moving walkways B66B) IPC+CPC Available in IPC and CPC