CPC Subgroup
E02D 17/16 Loosening of soil or rock, under water (for correcting streams E02B3/02; by dredgers or excavators E02F)
Full Title
Excavations; Bordering of excavations; Making embankments (soil-shifting apparatus E02F; earth drilling E21) > Loosening of soil or rock, under water (for correcting streams E02B3/02; by dredgers or excavators E02F)