IPC 2013 : E04H 15/14 : Ventilating.

IPC2013 > E > E04 > E04H > E04H 15/00 > E04H 15/14[3] > Ventilating.
Notes[t] E01 - E06: BUILDING
E SECTION E — FIXED CONSTRUCTIONS.
E04 BUILDING.
E04H BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL (foundations E02D).
E04H 15/00 Tents or canopies, in general.
E04H 15/14 · · · Ventilating.