IPC 2013 : E02D 23/06 : Bringing persons or material into, or out of, compressed air caissons.

IPC2013 > E > E02 > E02D > E02D 23/00 > E02D 23/06[2] > Bringing persons or material into, or out of, compressed air caissons.
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 23/00 Caissons; Construction or placing of caissons (tunnels submerged into or built in open water E02D 29/063).
E02D 23/06 · · Bringing persons or material into, or out of, compressed air caissons.