E FIXED CONSTRUCTIONS
E06 DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
E06C LADDERS
E06C5/00 Ladders characterised by being mounted on undercarriages or vehicles Securing ladders on vehicles
E06C5/02 with rigid longitudinal members
E06C5/04 capable of being elevated or extended; ; Fastening means during transport, e.g. mechanical, hydraulic