IPC 2013 : E02C 1/06 : Devices for filling or emptying locks (in lock gates E02B 7/20).

IPC2013 > E > E02 > E02C > E02C 1/00 > E02C 1/06[1] > Devices for filling or emptying locks (in lock gates E02B 7/20).
Notes[t] E01 - E06: BUILDING
E SECTION E — FIXED CONSTRUCTIONS.
E02 HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL-SHIFTING.
E02C SHIP-LIFTING DEVICES OR MECHANISMS.
E02C 1/00 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 1/06 · Devices for filling or emptying locks (in lock gates E02B 7/20).