IPC 2013 : E01D 15/00 : Movable or portable bridges (arrangement of ship-based outboard ramps or gangways  B63B 27/14; loading ramps B65G 69/28 ); Floating bridges.

IPC2013 > E > E01 > E01D > E01D 15/00[m] > Movable or portable bridges (arrangement of ship-based outboard ramps or gangways  B63B 27/14; loading ramps B65G 69/28 ); Floating bridges.
Notes[t] E01 - E06: BUILDING
E01D 15/02 · Vertical lift bridges.
E01D 15/04 · Swing bridges.
E01D 15/06 · Bascule bridges; Roller bascule bridges, e.g. of Scherzer type.
E01D 15/08 · · Drawbridges.
E01D 15/10 · Travelling bridges; Sliding bridges; Rotary cylinder bridges, i.e. rotating about longitudinal axis to invert and raise the road.
E01D 15/12 · Portable or sectional bridges (floating bridges E01D 15/14).
E01D 15/127 · · combined with ground-supported vehicles for the transport, handling or placing of such bridges or of sections thereof.
E01D 15/133 · · built-up from readily separable standardised sections or elements, e.g. Bailey bridges (E01D 15/127 takes precedence).
E01D 15/14 · Floating bridges, e.g. pontoon bridges (landing bridges E01D 15/24; floating bodies or pontoons B63B).
E01D 15/20 · · collapsible, expandable, inflatable or the like (E01D 15/22 takes precedence).
E01D 15/22 · · designed as, or mounted on, vehicles.
E01D 15/24 · Bridges or similar structures, based on land or on a fixed structure and designed to give access to ships or other floating structures.