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)
Introduced: September 1968
Title
Titles differ between systems:
IPC: Movable stairways, e.g. of loft ladders which may or may not be concealable or extensible
CPC: 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)
Full Title
Full titles differ between systems:
Stairways, ramps, or like structures; Balustrades; Handrails > Stairways; Layouts thereof > Movable stairways, e.g. of loft ladders which may or may not be concealable or extensible
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 > 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 and CPC are identically structured here. All 1 subcodes exist in both systems.
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