DIFF Subgroup
E01D 19/125 Full Title
Structural or constructional details of bridges > Grating or flooring for bridges; Fastening railway sleepers or tracks to bridges (sleepers E01B3/00)
E01D 19/125 Structural or constructional details of bridges > Grating or flooring for bridges; Fastening railway sleepers or tracks to bridges (sleepers E01B3/00)