IPC 2013 : E05C 3/38 : with bolts engaging a hooked keeper (E05C 3/24, E05C 3/30, E05C 3/36 take precedence).

IPC2013 > E > E05 > E05C > E05C 3/00 > E05C 3/38[4] > with bolts engaging a hooked keeper (E05C 3/24, E05C 3/30, E05C 3/36 take precedence).
Notes[t] E01 - E06: BUILDING
Notes[g] E05C 1/00 - E05C 5/00: Bolts, latches or equivalent wing-fastening devices, characterised by special way of movement, e.g. moving rectilinearly, pivotally or rotatively
E SECTION E — FIXED CONSTRUCTIONS.
E05 LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES.
E05C BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS (latching means for sideboard or tailgate structures for vehicles B62D 33/037; fastening devices for constructional or engineering elements E04, F16B; locks, fastening devices structurally or operatively combined or having significant cooperation with locks E05B; means for operating or controlling wing fasteners in conjunction with mechanisms for moving the wing E05F).
E05C 3/00 Fastening devices with bolts moving pivotally or rotatively (devices released automatically by pull or pressure on the wing E05C 19/02).
E05C 3/38 · · · · with bolts engaging a hooked keeper (E05C 3/24, E05C 3/30, E05C 3/36 take precedence).