DIFF Subgroup
E02D 23/14 Decreasing the skin friction while lowering
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Caissons; Construction or placing of caissons > Lowering or sinking caissons > Decreasing the skin friction while lowering
CPC:
Caissons; Construction or placing of caissons (tunnels submerged into or built in open water E02D29/063 ) > Lowering or sinking caissons > Decreasing the skin friction while lowering
No child classifications to compare. This is a leaf node in both IPC and CPC.