E FIXED CONSTRUCTIONS
E02 HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
E02F DREDGING; SOIL-SHIFTING
E02F9/00 Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
E02F9/08 Superstructures; Supports for superstructures
E02F9/0833 Improving access, e.g. for maintenance, steps for improving driver's access, handrails