DIFF Subgroup
E02D 23/08 Lowering or sinking caissons
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Caissons; Construction or placing of caissons > Lowering or sinking caissons
CPC:
Caissons; Construction or placing of caissons (tunnels submerged into or built in open water E02D29/063 ) > Lowering or sinking caissons
IPC and CPC are identically structured here. All 3 subcodes exist in both systems.
Child Classifications
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