| E | SK | FIXED CONSTRUCTIONS |
| E02 | KL | HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL-SHIFTING |
| E02C | UKL | SHIP-LIFTING DEVICES OR MECHANISMS |
| E02C 1/00 | HGR | Locks; Shaft locks, i.e. locks of which one front side is formed by a solid wall with an opening in the lower part through which the ships pass (lock gates E02B 7/20) |
| E02C 1/02 | UGR1 | |
| E02C 1/04 | UGR1 | |
| E02C 1/06 | UGR1 | | . | Devices for filling or emptying locks (in lock gates E02B 7/20) |
|
| E02C 1/08 | UGR1 | | . | Arrangements for dissipating the energy of the water (carried by lock gates E02B 8/06) |
|
| E02C 1/10 | UGR1 | | . | Equipment for use in connection with the navigation of ships in locks; Mooring equipment (tying-up, anchoring waterborne vessels B63B 21/00; equipment for shipping on coasts, in harbours or on other fixed marine structures E02B 3/20) |
|
| E02C 3/00 | HGR | Inclined-plane ship-lifting mechanisms |
| E02C 5/00 | HGR | Mechanisms for lifting ships vertically (salvaging sunken vessels B63C 7/00) |
| E02C 5/02 | UGR1 | |