IPC 2013 : E02D 31/04 : Watertight packings for use under hydraulic pressure.

IPC2013 > E > E02 > E02D > E02D 31/00 > E02D 31/04[2] > Watertight packings for use under hydraulic pressure.
Notes[t] E01 - E06: BUILDING
E SECTION E — FIXED CONSTRUCTIONS.
E02 HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL-SHIFTING.
E02D FOUNDATIONS; EXCAVATIONS; EMBANKMENTS (specially adapted for hydraulic engineering E02B ); UNDERGROUND OR UNDERWATER STRUCTURES.
E02D 31/00 Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution (spillage retaining means for tanks B65D 90/24).
E02D 31/04 · · Watertight packings for use under hydraulic pressure.